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Finding the Fourth Proportional to 521,551.62, 719,617.80 and 295,197.12

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Solution

The fourth proportional to 521,551.62, 719,617.80 and 295,197.12 is: 407,302.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,551.62 : 719,617.80 = 295,197.12 : x
  2. Step 2: Convert to fraction form
    521,551.62/719,617.80 = 295,197.12/x
  3. Step 3: Cross multiply
    521,551.62x = 719,617.80 × 295,197.12
  4. Step 4: Simplify right side
    521,551.62x = 212,429,102,060.74
  5. Step 5: Solve for x
    x = 212,429,102,060.74/521,551.62
  6. Step 6: Final answer
    x = 407,302.16

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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.