Home / 498,848.80-688,400.16-272,495.20

Finding the Fourth Proportional to 498,848.80, 688,400.16 and 272,495.20

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Solution

The fourth proportional to 498,848.80, 688,400.16 and 272,495.20 is: 376,037.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    498,848.80 : 688,400.16 = 272,495.20 : x
  2. Step 2: Convert to fraction form
    498,848.80/688,400.16 = 272,495.20/x
  3. Step 3: Cross multiply
    498,848.80x = 688,400.16 × 272,495.20
  4. Step 4: Simplify right side
    498,848.80x = 187,585,739,279.23
  5. Step 5: Solve for x
    x = 187,585,739,279.23/498,848.80
  6. Step 6: Final answer
    x = 376,037.27

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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.