Home / 688,560.45-1,032,839.87-239,281.36

Finding the Fourth Proportional to 688,560.45, 1,032,839.87 and 239,281.36

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Solution

The fourth proportional to 688,560.45, 1,032,839.87 and 239,281.36 is: 358,921.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    688,560.45 : 1,032,839.87 = 239,281.36 : x
  2. Step 2: Convert to fraction form
    688,560.45/1,032,839.87 = 239,281.36/x
  3. Step 3: Cross multiply
    688,560.45x = 1,032,839.87 × 239,281.36
  4. Step 4: Simplify right side
    688,560.45x = 247,139,328,755.82
  5. Step 5: Solve for x
    x = 247,139,328,755.82/688,560.45
  6. Step 6: Final answer
    x = 358,921.76

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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.