Home / 742,885.20-1,114,327.80-181,919.70

Finding the Fourth Proportional to 742,885.20, 1,114,327.80 and 181,919.70

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Solution

The fourth proportional to 742,885.20, 1,114,327.80 and 181,919.70 is: 272,879.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    742,885.20 : 1,114,327.80 = 181,919.70 : x
  2. Step 2: Convert to fraction form
    742,885.20/1,114,327.80 = 181,919.70/x
  3. Step 3: Cross multiply
    742,885.20x = 1,114,327.80 × 181,919.70
  4. Step 4: Simplify right side
    742,885.20x = 202,718,179,077.66
  5. Step 5: Solve for x
    x = 202,718,179,077.66/742,885.20
  6. Step 6: Final answer
    x = 272,879.55

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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.