Home / 712,642.16-1,069,013.13-286,177.97

Finding the Fourth Proportional to 712,642.16, 1,069,013.13 and 286,177.97

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Solution

The fourth proportional to 712,642.16, 1,069,013.13 and 286,177.97 is: 429,286.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    712,642.16 : 1,069,013.13 = 286,177.97 : x
  2. Step 2: Convert to fraction form
    712,642.16/1,069,013.13 = 286,177.97/x
  3. Step 3: Cross multiply
    712,642.16x = 1,069,013.13 × 286,177.97
  4. Step 4: Simplify right side
    712,642.16x = 305,928,000,670.79
  5. Step 5: Solve for x
    x = 305,928,000,670.79/712,642.16
  6. Step 6: Final answer
    x = 429,286.98

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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.