Home / 880,387.20-1,317,081.60-763,358.40

Finding the Fourth Proportional to 880,387.20, 1,317,081.60 and 763,358.40

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Solution

The fourth proportional to 880,387.20, 1,317,081.60 and 763,358.40 is: 1,142,003.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    880,387.20 : 1,317,081.60 = 763,358.40 : x
  2. Step 2: Convert to fraction form
    880,387.20/1,317,081.60 = 763,358.40/x
  3. Step 3: Cross multiply
    880,387.20x = 1,317,081.60 × 763,358.40
  4. Step 4: Simplify right side
    880,387.20x = 1,005,405,302,845.44
  5. Step 5: Solve for x
    x = 1,005,405,302,845.44/880,387.20
  6. Step 6: Final answer
    x = 1,142,003.54

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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.