Home / 688,141.78-1,032,213.38-261,577.35

Finding the Fourth Proportional to 688,141.78, 1,032,213.38 and 261,577.35

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Solution

The fourth proportional to 688,141.78, 1,032,213.38 and 261,577.35 is: 392,366.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    688,141.78 : 1,032,213.38 = 261,577.35 : x
  2. Step 2: Convert to fraction form
    688,141.78/1,032,213.38 = 261,577.35/x
  3. Step 3: Cross multiply
    688,141.78x = 1,032,213.38 × 261,577.35
  4. Step 4: Simplify right side
    688,141.78x = 270,003,639,267.06
  5. Step 5: Solve for x
    x = 270,003,639,267.06/688,141.78
  6. Step 6: Final answer
    x = 392,366.29

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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.