Home / 864,849.30-1,297,273.92-257,646.80

Finding the Fourth Proportional to 864,849.30, 1,297,273.92 and 257,646.80

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Solution

The fourth proportional to 864,849.30, 1,297,273.92 and 257,646.80 is: 386,470.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    864,849.30 : 1,297,273.92 = 257,646.80 : x
  2. Step 2: Convert to fraction form
    864,849.30/1,297,273.92 = 257,646.80/x
  3. Step 3: Cross multiply
    864,849.30x = 1,297,273.92 × 257,646.80
  4. Step 4: Simplify right side
    864,849.30x = 334,238,474,211.46
  5. Step 5: Solve for x
    x = 334,238,474,211.46/864,849.30
  6. Step 6: Final answer
    x = 386,470.19

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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.