Home / 490,060.12-676,280.28-275,218.96

Finding the Fourth Proportional to 490,060.12, 676,280.28 and 275,218.96

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Solution

The fourth proportional to 490,060.12, 676,280.28 and 275,218.96 is: 379,800.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,060.12 : 676,280.28 = 275,218.96 : x
  2. Step 2: Convert to fraction form
    490,060.12/676,280.28 = 275,218.96/x
  3. Step 3: Cross multiply
    490,060.12x = 676,280.28 × 275,218.96
  4. Step 4: Simplify right side
    490,060.12x = 186,125,155,330.11
  5. Step 5: Solve for x
    x = 186,125,155,330.11/490,060.12
  6. Step 6: Final answer
    x = 379,800.66

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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.