Home / 891,451.66-1,230,181.14-498,979.12

Finding the Fourth Proportional to 891,451.66, 1,230,181.14 and 498,979.12

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Solution

The fourth proportional to 891,451.66, 1,230,181.14 and 498,979.12 is: 688,578.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    891,451.66 : 1,230,181.14 = 498,979.12 : x
  2. Step 2: Convert to fraction form
    891,451.66/1,230,181.14 = 498,979.12/x
  3. Step 3: Cross multiply
    891,451.66x = 1,230,181.14 × 498,979.12
  4. Step 4: Simplify right side
    891,451.66x = 613,834,702,677.80
  5. Step 5: Solve for x
    x = 613,834,702,677.80/891,451.66
  6. Step 6: Final answer
    x = 688,578.79

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.