Home / 744,962.62-1,028,156.76-418,312.30

Finding the Fourth Proportional to 744,962.62, 1,028,156.76 and 418,312.30

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Solution

The fourth proportional to 744,962.62, 1,028,156.76 and 418,312.30 is: 577,331.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    744,962.62 : 1,028,156.76 = 418,312.30 : x
  2. Step 2: Convert to fraction form
    744,962.62/1,028,156.76 = 418,312.30/x
  3. Step 3: Cross multiply
    744,962.62x = 1,028,156.76 × 418,312.30
  4. Step 4: Simplify right side
    744,962.62x = 430,090,619,036.15
  5. Step 5: Solve for x
    x = 430,090,619,036.15/744,962.62
  6. Step 6: Final answer
    x = 577,331.81

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.