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Finding the Fourth Proportional to 690,221.73, 952,359.57 and 435,425.25

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Solution

The fourth proportional to 690,221.73, 952,359.57 and 435,425.25 is: 600,794.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    690,221.73 : 952,359.57 = 435,425.25 : x
  2. Step 2: Convert to fraction form
    690,221.73/952,359.57 = 435,425.25/x
  3. Step 3: Cross multiply
    690,221.73x = 952,359.57 × 435,425.25
  4. Step 4: Simplify right side
    690,221.73x = 414,681,403,857.14
  5. Step 5: Solve for x
    x = 414,681,403,857.14/690,221.73
  6. Step 6: Final answer
    x = 600,794.48

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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.