Home / 826,134.40-1,240,123.20-771,990.40

Finding the Fourth Proportional to 826,134.40, 1,240,123.20 and 771,990.40

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Solution

The fourth proportional to 826,134.40, 1,240,123.20 and 771,990.40 is: 1,158,846.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    826,134.40 : 1,240,123.20 = 771,990.40 : x
  2. Step 2: Convert to fraction form
    826,134.40/1,240,123.20 = 771,990.40/x
  3. Step 3: Cross multiply
    826,134.40x = 1,240,123.20 × 771,990.40
  4. Step 4: Simplify right side
    826,134.40x = 957,363,205,217.28
  5. Step 5: Solve for x
    x = 957,363,205,217.28/826,134.40
  6. Step 6: Final answer
    x = 1,158,846.80

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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.