Home / 498,739.52-688,264.94-283,893.40

Finding the Fourth Proportional to 498,739.52, 688,264.94 and 283,893.40

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Solution

The fourth proportional to 498,739.52, 688,264.94 and 283,893.40 is: 391,775.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    498,739.52 : 688,264.94 = 283,893.40 : x
  2. Step 2: Convert to fraction form
    498,739.52/688,264.94 = 283,893.40/x
  3. Step 3: Cross multiply
    498,739.52x = 688,264.94 × 283,893.40
  4. Step 4: Simplify right side
    498,739.52x = 195,393,873,917.40
  5. Step 5: Solve for x
    x = 195,393,873,917.40/498,739.52
  6. Step 6: Final answer
    x = 391,775.40

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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.