Home / 688,507.80-1,032,761.70-676,843.80

Finding the Fourth Proportional to 688,507.80, 1,032,761.70 and 676,843.80

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Solution

The fourth proportional to 688,507.80, 1,032,761.70 and 676,843.80 is: 1,015,265.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    688,507.80 : 1,032,761.70 = 676,843.80 : x
  2. Step 2: Convert to fraction form
    688,507.80/1,032,761.70 = 676,843.80/x
  3. Step 3: Cross multiply
    688,507.80x = 1,032,761.70 × 676,843.80
  4. Step 4: Simplify right side
    688,507.80x = 699,018,353,522.46
  5. Step 5: Solve for x
    x = 699,018,353,522.46/688,507.80
  6. Step 6: Final answer
    x = 1,015,265.70

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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.