Home / 498,945.22-688,544.35-272,590.72

Finding the Fourth Proportional to 498,945.22, 688,544.35 and 272,590.72

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Solution

The fourth proportional to 498,945.22, 688,544.35 and 272,590.72 is: 376,175.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    498,945.22 : 688,544.35 = 272,590.72 : x
  2. Step 2: Convert to fraction form
    498,945.22/688,544.35 = 272,590.72/x
  3. Step 3: Cross multiply
    498,945.22x = 688,544.35 × 272,590.72
  4. Step 4: Simplify right side
    498,945.22x = 187,690,797,715.59
  5. Step 5: Solve for x
    x = 187,690,797,715.59/498,945.22
  6. Step 6: Final answer
    x = 376,175.16

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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.