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Finding the Fourth Proportional to 493,384.10, 740,076.15 and 268,657.70

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Solution

The fourth proportional to 493,384.10, 740,076.15 and 268,657.70 is: 402,986.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    493,384.10 : 740,076.15 = 268,657.70 : x
  2. Step 2: Convert to fraction form
    493,384.10/740,076.15 = 268,657.70/x
  3. Step 3: Cross multiply
    493,384.10x = 740,076.15 × 268,657.70
  4. Step 4: Simplify right side
    493,384.10x = 198,827,156,283.86
  5. Step 5: Solve for x
    x = 198,827,156,283.86/493,384.10
  6. Step 6: Final answer
    x = 402,986.55

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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.