Home / 880,297.20-1,320,445.80-407,905.20

Finding the Fourth Proportional to 880,297.20, 1,320,445.80 and 407,905.20

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Solution

The fourth proportional to 880,297.20, 1,320,445.80 and 407,905.20 is: 611,857.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    880,297.20 : 1,320,445.80 = 407,905.20 : x
  2. Step 2: Convert to fraction form
    880,297.20/1,320,445.80 = 407,905.20/x
  3. Step 3: Cross multiply
    880,297.20x = 1,320,445.80 × 407,905.20
  4. Step 4: Simplify right side
    880,297.20x = 538,616,708,138.16
  5. Step 5: Solve for x
    x = 538,616,708,138.16/880,297.20
  6. Step 6: Final answer
    x = 611,857.80

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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.