Home / 712,642.41-1,069,013.50-286,178.22

Finding the Fourth Proportional to 712,642.41, 1,069,013.50 and 286,178.22

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Solution

The fourth proportional to 712,642.41, 1,069,013.50 and 286,178.22 is: 429,287.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    712,642.41 : 1,069,013.50 = 286,178.22 : x
  2. Step 2: Convert to fraction form
    712,642.41/1,069,013.50 = 286,178.22/x
  3. Step 3: Cross multiply
    712,642.41x = 1,069,013.50 × 286,178.22
  4. Step 4: Simplify right side
    712,642.41x = 305,928,379,870.52
  5. Step 5: Solve for x
    x = 305,928,379,870.52/712,642.41
  6. Step 6: Final answer
    x = 429,287.36

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Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.