Home / 501,264.30-691,781.38-286,399.70

Finding the Fourth Proportional to 501,264.30, 691,781.38 and 286,399.70

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Solution

The fourth proportional to 501,264.30, 691,781.38 and 286,399.70 is: 395,252.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    501,264.30 : 691,781.38 = 286,399.70 : x
  2. Step 2: Convert to fraction form
    501,264.30/691,781.38 = 286,399.70/x
  3. Step 3: Cross multiply
    501,264.30x = 691,781.38 × 286,399.70
  4. Step 4: Simplify right side
    501,264.30x = 198,125,979,697.59
  5. Step 5: Solve for x
    x = 198,125,979,697.59/501,264.30
  6. Step 6: Final answer
    x = 395,252.52

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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.