Home / 712,918.34-1,069,377.51-239,603.70

Finding the Fourth Proportional to 712,918.34, 1,069,377.51 and 239,603.70

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Solution

The fourth proportional to 712,918.34, 1,069,377.51 and 239,603.70 is: 359,405.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    712,918.34 : 1,069,377.51 = 239,603.70 : x
  2. Step 2: Convert to fraction form
    712,918.34/1,069,377.51 = 239,603.70/x
  3. Step 3: Cross multiply
    712,918.34x = 1,069,377.51 × 239,603.70
  4. Step 4: Simplify right side
    712,918.34x = 256,226,808,092.79
  5. Step 5: Solve for x
    x = 256,226,808,092.79/712,918.34
  6. Step 6: Final answer
    x = 359,405.55

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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.