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Finding the Fourth Proportional to 690,220.73, 952,358.19 and 435,424.25

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Solution

The fourth proportional to 690,220.73, 952,358.19 and 435,424.25 is: 600,793.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    690,220.73 : 952,358.19 = 435,424.25 : x
  2. Step 2: Convert to fraction form
    690,220.73/952,358.19 = 435,424.25/x
  3. Step 3: Cross multiply
    690,220.73x = 952,358.19 × 435,424.25
  4. Step 4: Simplify right side
    690,220.73x = 414,679,850,612.11
  5. Step 5: Solve for x
    x = 414,679,850,612.11/690,220.73
  6. Step 6: Final answer
    x = 600,793.10

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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.