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Finding the Fourth Proportional to 659,891.52, 910,652.70 and 358,085.52

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Solution

The fourth proportional to 659,891.52, 910,652.70 and 358,085.52 is: 494,159.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    659,891.52 : 910,652.70 = 358,085.52 : x
  2. Step 2: Convert to fraction form
    659,891.52/910,652.70 = 358,085.52/x
  3. Step 3: Cross multiply
    659,891.52x = 910,652.70 × 358,085.52
  4. Step 4: Simplify right side
    659,891.52x = 326,091,545,618.90
  5. Step 5: Solve for x
    x = 326,091,545,618.90/659,891.52
  6. Step 6: Final answer
    x = 494,159.32

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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.