Home / 876,009.60-1,314,014.40-728,387.10

Finding the Fourth Proportional to 876,009.60, 1,314,014.40 and 728,387.10

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Solution

The fourth proportional to 876,009.60, 1,314,014.40 and 728,387.10 is: 1,092,580.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    876,009.60 : 1,314,014.40 = 728,387.10 : x
  2. Step 2: Convert to fraction form
    876,009.60/1,314,014.40 = 728,387.10/x
  3. Step 3: Cross multiply
    876,009.60x = 1,314,014.40 × 728,387.10
  4. Step 4: Simplify right side
    876,009.60x = 957,111,138,174.24
  5. Step 5: Solve for x
    x = 957,111,138,174.24/876,009.60
  6. Step 6: Final answer
    x = 1,092,580.65

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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.