Home / 826,923.40-1,240,730.70-266,129.80

Finding the Fourth Proportional to 826,923.40, 1,240,730.70 and 266,129.80

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Solution

The fourth proportional to 826,923.40, 1,240,730.70 and 266,129.80 is: 399,305.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    826,923.40 : 1,240,730.70 = 266,129.80 : x
  2. Step 2: Convert to fraction form
    826,923.40/1,240,730.70 = 266,129.80/x
  3. Step 3: Cross multiply
    826,923.40x = 1,240,730.70 × 266,129.80
  4. Step 4: Simplify right side
    826,923.40x = 330,195,413,044.86
  5. Step 5: Solve for x
    x = 330,195,413,044.86/826,923.40
  6. Step 6: Final answer
    x = 399,305.92

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Similar ratio
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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.