Home / 880,820.70-1,321,231.05-249,726.30

Finding the Fourth Proportional to 880,820.70, 1,321,231.05 and 249,726.30

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Solution

The fourth proportional to 880,820.70, 1,321,231.05 and 249,726.30 is: 374,589.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    880,820.70 : 1,321,231.05 = 249,726.30 : x
  2. Step 2: Convert to fraction form
    880,820.70/1,321,231.05 = 249,726.30/x
  3. Step 3: Cross multiply
    880,820.70x = 1,321,231.05 × 249,726.30
  4. Step 4: Simplify right side
    880,820.70x = 329,946,141,561.62
  5. Step 5: Solve for x
    x = 329,946,141,561.62/880,820.70
  6. Step 6: Final answer
    x = 374,589.45

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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.