Home / 745,342.97-1,028,598.35-418,713.30

Finding the Fourth Proportional to 745,342.97, 1,028,598.35 and 418,713.30

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Solution

The fourth proportional to 745,342.97, 1,028,598.35 and 418,713.30 is: 577,838.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    745,342.97 : 1,028,598.35 = 418,713.30 : x
  2. Step 2: Convert to fraction form
    745,342.97/1,028,598.35 = 418,713.30/x
  3. Step 3: Cross multiply
    745,342.97x = 1,028,598.35 × 418,713.30
  4. Step 4: Simplify right side
    745,342.97x = 430,687,807,409.49
  5. Step 5: Solve for x
    x = 430,687,807,409.49/745,342.97
  6. Step 6: Final answer
    x = 577,838.43

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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.