Home / 782,606.52-1,173,909.78-221,641.02

Finding the Fourth Proportional to 782,606.52, 1,173,909.78 and 221,641.02

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Solution

The fourth proportional to 782,606.52, 1,173,909.78 and 221,641.02 is: 332,461.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    782,606.52 : 1,173,909.78 = 221,641.02 : x
  2. Step 2: Convert to fraction form
    782,606.52/1,173,909.78 = 221,641.02/x
  3. Step 3: Cross multiply
    782,606.52x = 1,173,909.78 × 221,641.02
  4. Step 4: Simplify right side
    782,606.52x = 260,186,561,027.18
  5. Step 5: Solve for x
    x = 260,186,561,027.18/782,606.52
  6. Step 6: Final answer
    x = 332,461.53

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.