Home / 1,131,105.60-1,560,902.40-678,542.40

Finding the Fourth Proportional to 1,131,105.60, 1,560,902.40 and 678,542.40

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Solution

The fourth proportional to 1,131,105.60, 1,560,902.40 and 678,542.40 is: 936,374.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,131,105.60 : 1,560,902.40 = 678,542.40 : x
  2. Step 2: Convert to fraction form
    1,131,105.60/1,560,902.40 = 678,542.40/x
  3. Step 3: Cross multiply
    1,131,105.60x = 1,560,902.40 × 678,542.40
  4. Step 4: Simplify right side
    1,131,105.60x = 1,059,138,460,661.76
  5. Step 5: Solve for x
    x = 1,059,138,460,661.76/1,131,105.60
  6. Step 6: Final answer
    x = 936,374.52

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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.