Home / 688,206.10-1,032,308.67-214,932.02

Finding the Fourth Proportional to 688,206.10, 1,032,308.67 and 214,932.02

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Solution

The fourth proportional to 688,206.10, 1,032,308.67 and 214,932.02 is: 322,397.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    688,206.10 : 1,032,308.67 = 214,932.02 : x
  2. Step 2: Convert to fraction form
    688,206.10/1,032,308.67 = 214,932.02/x
  3. Step 3: Cross multiply
    688,206.10x = 1,032,308.67 × 214,932.02
  4. Step 4: Simplify right side
    688,206.10x = 221,876,187,706.61
  5. Step 5: Solve for x
    x = 221,876,187,706.61/688,206.10
  6. Step 6: Final answer
    x = 322,397.88

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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.