Home / 1,081,500.80-1,622,254.74-407,401.18

Finding the Fourth Proportional to 1,081,500.80, 1,622,254.74 and 407,401.18

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Solution

The fourth proportional to 1,081,500.80, 1,622,254.74 and 407,401.18 is: 611,103.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,081,500.80 : 1,622,254.74 = 407,401.18 : x
  2. Step 2: Convert to fraction form
    1,081,500.80/1,622,254.74 = 407,401.18/x
  3. Step 3: Cross multiply
    1,081,500.80x = 1,622,254.74 × 407,401.18
  4. Step 4: Simplify right side
    1,081,500.80x = 660,908,489,753.20
  5. Step 5: Solve for x
    x = 660,908,489,753.20/1,081,500.80
  6. Step 6: Final answer
    x = 611,103.10

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Double scale
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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.