Home / 879,280.20-1,213,414.38-476,872.20

Finding the Fourth Proportional to 879,280.20, 1,213,414.38 and 476,872.20

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Solution

The fourth proportional to 879,280.20, 1,213,414.38 and 476,872.20 is: 658,087.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    879,280.20 : 1,213,414.38 = 476,872.20 : x
  2. Step 2: Convert to fraction form
    879,280.20/1,213,414.38 = 476,872.20/x
  3. Step 3: Cross multiply
    879,280.20x = 1,213,414.38 × 476,872.20
  4. Step 4: Simplify right side
    879,280.20x = 578,643,584,902.24
  5. Step 5: Solve for x
    x = 578,643,584,902.24/879,280.20
  6. Step 6: Final answer
    x = 658,087.81

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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.