Home / 498,599.82-688,065.03-272,243.70

Finding the Fourth Proportional to 498,599.82, 688,065.03 and 272,243.70

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Solution

The fourth proportional to 498,599.82, 688,065.03 and 272,243.70 is: 375,694.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    498,599.82 : 688,065.03 = 272,243.70 : x
  2. Step 2: Convert to fraction form
    498,599.82/688,065.03 = 272,243.70/x
  3. Step 3: Cross multiply
    498,599.82x = 688,065.03 × 272,243.70
  4. Step 4: Simplify right side
    498,599.82x = 187,321,369,607.81
  5. Step 5: Solve for x
    x = 187,321,369,607.81/498,599.82
  6. Step 6: Final answer
    x = 375,694.82

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1.5x scale

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.