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Finding the Fourth Proportional to 721,519.52, 996,097.36 and 435,112.16

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Solution

The fourth proportional to 721,519.52, 996,097.36 and 435,112.16 is: 600,696.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    721,519.52 : 996,097.36 = 435,112.16 : x
  2. Step 2: Convert to fraction form
    721,519.52/996,097.36 = 435,112.16/x
  3. Step 3: Cross multiply
    721,519.52x = 996,097.36 × 435,112.16
  4. Step 4: Simplify right side
    721,519.52x = 433,414,073,879.90
  5. Step 5: Solve for x
    x = 433,414,073,879.90/721,519.52
  6. Step 6: Final answer
    x = 600,696.26

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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.