Home / 498,276.18-687,637.14-283,410.72

Finding the Fourth Proportional to 498,276.18, 687,637.14 and 283,410.72

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Solution

The fourth proportional to 498,276.18, 687,637.14 and 283,410.72 is: 391,115.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    498,276.18 : 687,637.14 = 283,410.72 : x
  2. Step 2: Convert to fraction form
    498,276.18/687,637.14 = 283,410.72/x
  3. Step 3: Cross multiply
    498,276.18x = 687,637.14 × 283,410.72
  4. Step 4: Simplify right side
    498,276.18x = 194,883,736,946.14
  5. Step 5: Solve for x
    x = 194,883,736,946.14/498,276.18
  6. Step 6: Final answer
    x = 391,115.90

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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.