Home / 712,045.71-1,068,066.14-291,321.59

Finding the Fourth Proportional to 712,045.71, 1,068,066.14 and 291,321.59

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Solution

The fourth proportional to 712,045.71, 1,068,066.14 and 291,321.59 is: 436,981.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    712,045.71 : 1,068,066.14 = 291,321.59 : x
  2. Step 2: Convert to fraction form
    712,045.71/1,068,066.14 = 291,321.59/x
  3. Step 3: Cross multiply
    712,045.71x = 1,068,066.14 × 291,321.59
  4. Step 4: Simplify right side
    712,045.71x = 311,150,719,333.02
  5. Step 5: Solve for x
    x = 311,150,719,333.02/712,045.71
  6. Step 6: Final answer
    x = 436,981.38

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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.