Home / 1,120,040.60-1,680,279.60-446,007.20

Finding the Fourth Proportional to 1,120,040.60, 1,680,279.60 and 446,007.20

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Solution

The fourth proportional to 1,120,040.60, 1,680,279.60 and 446,007.20 is: 669,097.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,120,040.60 : 1,680,279.60 = 446,007.20 : x
  2. Step 2: Convert to fraction form
    1,120,040.60/1,680,279.60 = 446,007.20/x
  3. Step 3: Cross multiply
    1,120,040.60x = 1,680,279.60 × 446,007.20
  4. Step 4: Simplify right side
    1,120,040.60x = 749,416,799,613.12
  5. Step 5: Solve for x
    x = 749,416,799,613.12/1,120,040.60
  6. Step 6: Final answer
    x = 669,097.89

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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.