Home / 1,120,007.60-1,680,230.10-445,974.20

Finding the Fourth Proportional to 1,120,007.60, 1,680,230.10 and 445,974.20

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Solution

The fourth proportional to 1,120,007.60, 1,680,230.10 and 445,974.20 is: 669,048.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,120,007.60 : 1,680,230.10 = 445,974.20 : x
  2. Step 2: Convert to fraction form
    1,120,007.60/1,680,230.10 = 445,974.20/x
  3. Step 3: Cross multiply
    1,120,007.60x = 1,680,230.10 × 445,974.20
  4. Step 4: Simplify right side
    1,120,007.60x = 749,339,274,663.42
  5. Step 5: Solve for x
    x = 749,339,274,663.42/1,120,007.60
  6. Step 6: Final answer
    x = 669,048.38

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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.