Home / 1,299,159.38-1,948,613.69-400,359.78

Finding the Fourth Proportional to 1,299,159.38, 1,948,613.69 and 400,359.78

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Solution

The fourth proportional to 1,299,159.38, 1,948,613.69 and 400,359.78 is: 600,501.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,299,159.38 : 1,948,613.69 = 400,359.78 : x
  2. Step 2: Convert to fraction form
    1,299,159.38/1,948,613.69 = 400,359.78/x
  3. Step 3: Cross multiply
    1,299,159.38x = 1,948,613.69 × 400,359.78
  4. Step 4: Simplify right side
    1,299,159.38x = 780,146,549,234.29
  5. Step 5: Solve for x
    x = 780,146,549,234.29/1,299,159.38
  6. Step 6: Final answer
    x = 600,501.03

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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.