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Finding the Fourth Proportional to 648,073.10, 894,298.92 and 357,687.30

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Solution

The fourth proportional to 648,073.10, 894,298.92 and 357,687.30 is: 493,585.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,073.10 : 894,298.92 = 357,687.30 : x
  2. Step 2: Convert to fraction form
    648,073.10/894,298.92 = 357,687.30/x
  3. Step 3: Cross multiply
    648,073.10x = 894,298.92 × 357,687.30
  4. Step 4: Simplify right side
    648,073.10x = 319,879,366,087.72
  5. Step 5: Solve for x
    x = 319,879,366,087.72/648,073.10
  6. Step 6: Final answer
    x = 493,585.32

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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.