Home / 454,768.20-680,840.10-402,280.20

Finding the Fourth Proportional to 454,768.20, 680,840.10 and 402,280.20

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Solution

The fourth proportional to 454,768.20, 680,840.10 and 402,280.20 is: 602,259.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    454,768.20 : 680,840.10 = 402,280.20 : x
  2. Step 2: Convert to fraction form
    454,768.20/680,840.10 = 402,280.20/x
  3. Step 3: Cross multiply
    454,768.20x = 680,840.10 × 402,280.20
  4. Step 4: Simplify right side
    454,768.20x = 273,888,491,596.02
  5. Step 5: Solve for x
    x = 273,888,491,596.02/454,768.20
  6. Step 6: Final answer
    x = 602,259.55

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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.