Home / 910,881.40-1,366,322.10-279,794.20

Finding the Fourth Proportional to 910,881.40, 1,366,322.10 and 279,794.20

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Solution

The fourth proportional to 910,881.40, 1,366,322.10 and 279,794.20 is: 419,691.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    910,881.40 : 1,366,322.10 = 279,794.20 : x
  2. Step 2: Convert to fraction form
    910,881.40/1,366,322.10 = 279,794.20/x
  3. Step 3: Cross multiply
    910,881.40x = 1,366,322.10 × 279,794.20
  4. Step 4: Simplify right side
    910,881.40x = 382,288,998,911.82
  5. Step 5: Solve for x
    x = 382,288,998,911.82/910,881.40
  6. Step 6: Final answer
    x = 419,691.30

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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.