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Finding the Fourth Proportional to 560,400.90, 840,601.35 and 493,916.10

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Solution

The fourth proportional to 560,400.90, 840,601.35 and 493,916.10 is: 740,874.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    560,400.90 : 840,601.35 = 493,916.10 : x
  2. Step 2: Convert to fraction form
    560,400.90/840,601.35 = 493,916.10/x
  3. Step 3: Cross multiply
    560,400.90x = 840,601.35 × 493,916.10
  4. Step 4: Simplify right side
    560,400.90x = 415,186,540,446.74
  5. Step 5: Solve for x
    x = 415,186,540,446.74/560,400.90
  6. Step 6: Final answer
    x = 740,874.15

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.