Home / 1,059,400.80-1,589,101.20-490,780.80

Finding the Fourth Proportional to 1,059,400.80, 1,589,101.20 and 490,780.80

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Solution

The fourth proportional to 1,059,400.80, 1,589,101.20 and 490,780.80 is: 736,171.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,059,400.80 : 1,589,101.20 = 490,780.80 : x
  2. Step 2: Convert to fraction form
    1,059,400.80/1,589,101.20 = 490,780.80/x
  3. Step 3: Cross multiply
    1,059,400.80x = 1,589,101.20 × 490,780.80
  4. Step 4: Simplify right side
    1,059,400.80x = 779,900,358,216.96
  5. Step 5: Solve for x
    x = 779,900,358,216.96/1,059,400.80
  6. Step 6: Final answer
    x = 736,171.20

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Double scale
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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.