Home / 744,287.32-1,115,428.60-406,821.07

Finding the Fourth Proportional to 744,287.32, 1,115,428.60 and 406,821.07

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Solution

The fourth proportional to 744,287.32, 1,115,428.60 and 406,821.07 is: 609,683.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    744,287.32 : 1,115,428.60 = 406,821.07 : x
  2. Step 2: Convert to fraction form
    744,287.32/1,115,428.60 = 406,821.07/x
  3. Step 3: Cross multiply
    744,287.32x = 1,115,428.60 × 406,821.07
  4. Step 4: Simplify right side
    744,287.32x = 453,779,856,560.60
  5. Step 5: Solve for x
    x = 453,779,856,560.60/744,287.32
  6. Step 6: Final answer
    x = 609,683.71

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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.