Home / 498,168.36-687,487.50-283,339.35

Finding the Fourth Proportional to 498,168.36, 687,487.50 and 283,339.35

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Solution

The fourth proportional to 498,168.36, 687,487.50 and 283,339.35 is: 391,016.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    498,168.36 : 687,487.50 = 283,339.35 : x
  2. Step 2: Convert to fraction form
    498,168.36/687,487.50 = 283,339.35/x
  3. Step 3: Cross multiply
    498,168.36x = 687,487.50 × 283,339.35
  4. Step 4: Simplify right side
    498,168.36x = 194,792,261,383.13
  5. Step 5: Solve for x
    x = 194,792,261,383.13/498,168.36
  6. Step 6: Final answer
    x = 391,016.93

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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.