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Finding the Fourth Proportional to 521,630.08, 719,849.92 and 295,348.48

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Solution

The fourth proportional to 521,630.08, 719,849.92 and 295,348.48 is: 407,581.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,630.08 : 719,849.92 = 295,348.48 : x
  2. Step 2: Convert to fraction form
    521,630.08/719,849.92 = 295,348.48/x
  3. Step 3: Cross multiply
    521,630.08x = 719,849.92 × 295,348.48
  4. Step 4: Simplify right side
    521,630.08x = 212,606,579,700.12
  5. Step 5: Solve for x
    x = 212,606,579,700.12/521,630.08
  6. Step 6: Final answer
    x = 407,581.13

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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.