Home / 688,507.70-1,032,761.55-369,643.10

Finding the Fourth Proportional to 688,507.70, 1,032,761.55 and 369,643.10

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Solution

The fourth proportional to 688,507.70, 1,032,761.55 and 369,643.10 is: 554,464.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    688,507.70 : 1,032,761.55 = 369,643.10 : x
  2. Step 2: Convert to fraction form
    688,507.70/1,032,761.55 = 369,643.10/x
  3. Step 3: Cross multiply
    688,507.70x = 1,032,761.55 × 369,643.10
  4. Step 4: Simplify right side
    688,507.70x = 381,753,180,902.81
  5. Step 5: Solve for x
    x = 381,753,180,902.81/688,507.70
  6. Step 6: Final answer
    x = 554,464.65

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Similar ratio
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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.