Home / 862,079.40-1,293,119.10-329,617.80

Finding the Fourth Proportional to 862,079.40, 1,293,119.10 and 329,617.80

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Solution

The fourth proportional to 862,079.40, 1,293,119.10 and 329,617.80 is: 494,426.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    862,079.40 : 1,293,119.10 = 329,617.80 : x
  2. Step 2: Convert to fraction form
    862,079.40/1,293,119.10 = 329,617.80/x
  3. Step 3: Cross multiply
    862,079.40x = 1,293,119.10 × 329,617.80
  4. Step 4: Simplify right side
    862,079.40x = 426,235,072,879.98
  5. Step 5: Solve for x
    x = 426,235,072,879.98/862,079.40
  6. Step 6: Final answer
    x = 494,426.70

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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.