Home / 498,531.36-687,988.44-283,702.35

Finding the Fourth Proportional to 498,531.36, 687,988.44 and 283,702.35

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Solution

The fourth proportional to 498,531.36, 687,988.44 and 283,702.35 is: 391,517.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    498,531.36 : 687,988.44 = 283,702.35 : x
  2. Step 2: Convert to fraction form
    498,531.36/687,988.44 = 283,702.35/x
  3. Step 3: Cross multiply
    498,531.36x = 687,988.44 × 283,702.35
  4. Step 4: Simplify right side
    498,531.36x = 195,183,937,200.83
  5. Step 5: Solve for x
    x = 195,183,937,200.83/498,531.36
  6. Step 6: Final answer
    x = 391,517.87

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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.