Home / 763,154.30-1,053,182.55-419,004.73

Finding the Fourth Proportional to 763,154.30, 1,053,182.55 and 419,004.73

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Solution

The fourth proportional to 763,154.30, 1,053,182.55 and 419,004.73 is: 578,242.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    763,154.30 : 1,053,182.55 = 419,004.73 : x
  2. Step 2: Convert to fraction form
    763,154.30/1,053,182.55 = 419,004.73/x
  3. Step 3: Cross multiply
    763,154.30x = 1,053,182.55 × 419,004.73
  4. Step 4: Simplify right side
    763,154.30x = 441,288,470,239.70
  5. Step 5: Solve for x
    x = 441,288,470,239.70/763,154.30
  6. Step 6: Final answer
    x = 578,242.79

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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.