Home / 726,714.30-1,090,071.45-540,090.30

Finding the Fourth Proportional to 726,714.30, 1,090,071.45 and 540,090.30

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Solution

The fourth proportional to 726,714.30, 1,090,071.45 and 540,090.30 is: 810,135.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    726,714.30 : 1,090,071.45 = 540,090.30 : x
  2. Step 2: Convert to fraction form
    726,714.30/1,090,071.45 = 540,090.30/x
  3. Step 3: Cross multiply
    726,714.30x = 1,090,071.45 × 540,090.30
  4. Step 4: Simplify right side
    726,714.30x = 588,737,016,451.94
  5. Step 5: Solve for x
    x = 588,737,016,451.94/726,714.30
  6. Step 6: Final answer
    x = 810,135.45

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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.