Home / 521,001.12-718,822.80-291,534.60

Finding the Fourth Proportional to 521,001.12, 718,822.80 and 291,534.60

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Solution

The fourth proportional to 521,001.12, 718,822.80 and 291,534.60 is: 402,228.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,001.12 : 718,822.80 = 291,534.60 : x
  2. Step 2: Convert to fraction form
    521,001.12/718,822.80 = 291,534.60/x
  3. Step 3: Cross multiply
    521,001.12x = 718,822.80 × 291,534.60
  4. Step 4: Simplify right side
    521,001.12x = 209,561,717,468.88
  5. Step 5: Solve for x
    x = 209,561,717,468.88/521,001.12
  6. Step 6: Final answer
    x = 402,228.92

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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.