Home / 778,011.30-1,167,174.18-328,733.46

Finding the Fourth Proportional to 778,011.30, 1,167,174.18 and 328,733.46

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Solution

The fourth proportional to 778,011.30, 1,167,174.18 and 328,733.46 is: 493,166.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,011.30 : 1,167,174.18 = 328,733.46 : x
  2. Step 2: Convert to fraction form
    778,011.30/1,167,174.18 = 328,733.46/x
  3. Step 3: Cross multiply
    778,011.30x = 1,167,174.18 × 328,733.46
  4. Step 4: Simplify right side
    778,011.30x = 383,689,206,614.06
  5. Step 5: Solve for x
    x = 383,689,206,614.06/778,011.30
  6. Step 6: Final answer
    x = 493,166.62

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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.