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Finding the Fourth Proportional to 521,228.52, 719,218.62 and 291,773.88

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Solution

The fourth proportional to 521,228.52, 719,218.62 and 291,773.88 is: 402,605.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,228.52 : 719,218.62 = 291,773.88 : x
  2. Step 2: Convert to fraction form
    521,228.52/719,218.62 = 291,773.88/x
  3. Step 3: Cross multiply
    521,228.52x = 719,218.62 × 291,773.88
  4. Step 4: Simplify right side
    521,228.52x = 209,849,207,325.65
  5. Step 5: Solve for x
    x = 209,849,207,325.65/521,228.52
  6. Step 6: Final answer
    x = 402,605.00

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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.