Home / 1,245,942.91-1,869,070.08-487,686.52

Finding the Fourth Proportional to 1,245,942.91, 1,869,070.08 and 487,686.52

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Solution

The fourth proportional to 1,245,942.91, 1,869,070.08 and 487,686.52 is: 731,590.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,245,942.91 : 1,869,070.08 = 487,686.52 : x
  2. Step 2: Convert to fraction form
    1,245,942.91/1,869,070.08 = 487,686.52/x
  3. Step 3: Cross multiply
    1,245,942.91x = 1,869,070.08 × 487,686.52
  4. Step 4: Simplify right side
    1,245,942.91x = 911,520,273,605.97
  5. Step 5: Solve for x
    x = 911,520,273,605.97/1,245,942.91
  6. Step 6: Final answer
    x = 731,590.73

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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.