Home / 1,240,748.10-1,861,122.15-442,055.70

Finding the Fourth Proportional to 1,240,748.10, 1,861,122.15 and 442,055.70

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Solution

The fourth proportional to 1,240,748.10, 1,861,122.15 and 442,055.70 is: 663,083.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,240,748.10 : 1,861,122.15 = 442,055.70 : x
  2. Step 2: Convert to fraction form
    1,240,748.10/1,861,122.15 = 442,055.70/x
  3. Step 3: Cross multiply
    1,240,748.10x = 1,861,122.15 × 442,055.70
  4. Step 4: Simplify right side
    1,240,748.10x = 822,719,654,803.76
  5. Step 5: Solve for x
    x = 822,719,654,803.76/1,240,748.10
  6. Step 6: Final answer
    x = 663,083.55

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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.