Home / 499,439.87-689,294.45-281,693.24

Finding the Fourth Proportional to 499,439.87, 689,294.45 and 281,693.24

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Solution

The fourth proportional to 499,439.87, 689,294.45 and 281,693.24 is: 388,774.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,439.87 : 689,294.45 = 281,693.24 : x
  2. Step 2: Convert to fraction form
    499,439.87/689,294.45 = 281,693.24/x
  3. Step 3: Cross multiply
    499,439.87x = 689,294.45 × 281,693.24
  4. Step 4: Simplify right side
    499,439.87x = 194,169,587,444.02
  5. Step 5: Solve for x
    x = 194,169,587,444.02/499,439.87
  6. Step 6: Final answer
    x = 388,774.70

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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.