Home / 587,786.02-811,153.59-329,720.17

Finding the Fourth Proportional to 587,786.02, 811,153.59 and 329,720.17

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Solution

The fourth proportional to 587,786.02, 811,153.59 and 329,720.17 is: 455,018.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    587,786.02 : 811,153.59 = 329,720.17 : x
  2. Step 2: Convert to fraction form
    587,786.02/811,153.59 = 329,720.17/x
  3. Step 3: Cross multiply
    587,786.02x = 811,153.59 × 329,720.17
  4. Step 4: Simplify right side
    587,786.02x = 267,453,699,702.17
  5. Step 5: Solve for x
    x = 267,453,699,702.17/587,786.02
  6. Step 6: Final answer
    x = 455,018.82

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.