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Finding the Fourth Proportional to 758,937.62, 1,047,292.68 and 419,384

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Solution

The fourth proportional to 758,937.62, 1,047,292.68 and 419,384 is: 578,727.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    758,937.62 : 1,047,292.68 = 419,384 : x
  2. Step 2: Convert to fraction form
    758,937.62/1,047,292.68 = 419,384/x
  3. Step 3: Cross multiply
    758,937.62x = 1,047,292.68 × 419,384
  4. Step 4: Simplify right side
    758,937.62x = 439,217,793,309.12
  5. Step 5: Solve for x
    x = 439,217,793,309.12/758,937.62
  6. Step 6: Final answer
    x = 578,727.13

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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.