Home / 782,516.88-1,173,779.64-221,551.92

Finding the Fourth Proportional to 782,516.88, 1,173,779.64 and 221,551.92

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Solution

The fourth proportional to 782,516.88, 1,173,779.64 and 221,551.92 is: 332,329.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    782,516.88 : 1,173,779.64 = 221,551.92 : x
  2. Step 2: Convert to fraction form
    782,516.88/1,173,779.64 = 221,551.92/x
  3. Step 3: Cross multiply
    782,516.88x = 1,173,779.64 × 221,551.92
  4. Step 4: Simplify right side
    782,516.88x = 260,053,132,898.91
  5. Step 5: Solve for x
    x = 260,053,132,898.91/782,516.88
  6. Step 6: Final answer
    x = 332,329.10

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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.