Home / 695,186.40-1,042,520.40-274,375.20

Finding the Fourth Proportional to 695,186.40, 1,042,520.40 and 274,375.20

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Solution

The fourth proportional to 695,186.40, 1,042,520.40 and 274,375.20 is: 411,460.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    695,186.40 : 1,042,520.40 = 274,375.20 : x
  2. Step 2: Convert to fraction form
    695,186.40/1,042,520.40 = 274,375.20/x
  3. Step 3: Cross multiply
    695,186.40x = 1,042,520.40 × 274,375.20
  4. Step 4: Simplify right side
    695,186.40x = 286,041,743,254.08
  5. Step 5: Solve for x
    x = 286,041,743,254.08/695,186.40
  6. Step 6: Final answer
    x = 411,460.50

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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.