Home / 862,077.40-1,293,116.10-329,615.80

Finding the Fourth Proportional to 862,077.40, 1,293,116.10 and 329,615.80

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Solution

The fourth proportional to 862,077.40, 1,293,116.10 and 329,615.80 is: 494,423.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    862,077.40 : 1,293,116.10 = 329,615.80 : x
  2. Step 2: Convert to fraction form
    862,077.40/1,293,116.10 = 329,615.80/x
  3. Step 3: Cross multiply
    862,077.40x = 1,293,116.10 × 329,615.80
  4. Step 4: Simplify right side
    862,077.40x = 426,231,497,794.38
  5. Step 5: Solve for x
    x = 426,231,497,794.38/862,077.40
  6. Step 6: Final answer
    x = 494,423.70

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Double scale
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1.5x scale

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.