Home / 741,712.80-1,112,569.20-368,464.80

Finding the Fourth Proportional to 741,712.80, 1,112,569.20 and 368,464.80

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Solution

The fourth proportional to 741,712.80, 1,112,569.20 and 368,464.80 is: 552,697.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    741,712.80 : 1,112,569.20 = 368,464.80 : x
  2. Step 2: Convert to fraction form
    741,712.80/1,112,569.20 = 368,464.80/x
  3. Step 3: Cross multiply
    741,712.80x = 1,112,569.20 × 368,464.80
  4. Step 4: Simplify right side
    741,712.80x = 409,942,587,764.16
  5. Step 5: Solve for x
    x = 409,942,587,764.16/741,712.80
  6. Step 6: Final answer
    x = 552,697.20

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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.