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Finding the Fourth Proportional to 656,885.52, 906,503.67 and 370,410.39

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Solution

The fourth proportional to 656,885.52, 906,503.67 and 370,410.39 is: 511,167.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    656,885.52 : 906,503.67 = 370,410.39 : x
  2. Step 2: Convert to fraction form
    656,885.52/906,503.67 = 370,410.39/x
  3. Step 3: Cross multiply
    656,885.52x = 906,503.67 × 370,410.39
  4. Step 4: Simplify right side
    656,885.52x = 335,778,377,941.13
  5. Step 5: Solve for x
    x = 335,778,377,941.13/656,885.52
  6. Step 6: Final answer
    x = 511,167.27

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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.