Home / 826,291.20-1,140,526.08-486,868.80

Finding the Fourth Proportional to 826,291.20, 1,140,526.08 and 486,868.80

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Solution

The fourth proportional to 826,291.20, 1,140,526.08 and 486,868.80 is: 672,022.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    826,291.20 : 1,140,526.08 = 486,868.80 : x
  2. Step 2: Convert to fraction form
    826,291.20/1,140,526.08 = 486,868.80/x
  3. Step 3: Cross multiply
    826,291.20x = 1,140,526.08 × 486,868.80
  4. Step 4: Simplify right side
    826,291.20x = 555,286,563,938.30
  5. Step 5: Solve for x
    x = 555,286,563,938.30/826,291.20
  6. Step 6: Final answer
    x = 672,022.85

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.