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Finding the Fourth Proportional to 521,486.96, 719,592.50 and 292,012.34

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Solution

The fourth proportional to 521,486.96, 719,592.50 and 292,012.34 is: 402,943.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,486.96 : 719,592.50 = 292,012.34 : x
  2. Step 2: Convert to fraction form
    521,486.96/719,592.50 = 292,012.34/x
  3. Step 3: Cross multiply
    521,486.96x = 719,592.50 × 292,012.34
  4. Step 4: Simplify right side
    521,486.96x = 210,129,884,713.43
  5. Step 5: Solve for x
    x = 210,129,884,713.43/521,486.96
  6. Step 6: Final answer
    x = 402,943.70

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1.5x scale

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.