Home / 910,400.40-1,365,600.60-279,232.20

Finding the Fourth Proportional to 910,400.40, 1,365,600.60 and 279,232.20

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Solution

The fourth proportional to 910,400.40, 1,365,600.60 and 279,232.20 is: 418,848.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    910,400.40 : 1,365,600.60 = 279,232.20 : x
  2. Step 2: Convert to fraction form
    910,400.40/1,365,600.60 = 279,232.20/x
  3. Step 3: Cross multiply
    910,400.40x = 1,365,600.60 × 279,232.20
  4. Step 4: Simplify right side
    910,400.40x = 381,319,659,859.32
  5. Step 5: Solve for x
    x = 381,319,659,859.32/910,400.40
  6. Step 6: Final answer
    x = 418,848.30

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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.