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Finding the Fourth Proportional to 659,612.70, 910,265.31 and 357,806.70

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Solution

The fourth proportional to 659,612.70, 910,265.31 and 357,806.70 is: 493,773.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    659,612.70 : 910,265.31 = 357,806.70 : x
  2. Step 2: Convert to fraction form
    659,612.70/910,265.31 = 357,806.70/x
  3. Step 3: Cross multiply
    659,612.70x = 910,265.31 × 357,806.70
  4. Step 4: Simplify right side
    659,612.70x = 325,699,026,695.58
  5. Step 5: Solve for x
    x = 325,699,026,695.58/659,612.70
  6. Step 6: Final answer
    x = 493,773.13

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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.