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Finding the Fourth Proportional to 521,464.80, 719,660.76 and 292,010.42

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Solution

The fourth proportional to 521,464.80, 719,660.76 and 292,010.42 is: 402,996.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,464.80 : 719,660.76 = 292,010.42 : x
  2. Step 2: Convert to fraction form
    521,464.80/719,660.76 = 292,010.42/x
  3. Step 3: Cross multiply
    521,464.80x = 719,660.76 × 292,010.42
  4. Step 4: Simplify right side
    521,464.80x = 210,148,440,785.12
  5. Step 5: Solve for x
    x = 210,148,440,785.12/521,464.80
  6. Step 6: Final answer
    x = 402,996.41

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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.