Home / 490,049.15-676,267.88-275,189.36

Finding the Fourth Proportional to 490,049.15, 676,267.88 and 275,189.36

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Solution

The fourth proportional to 490,049.15, 676,267.88 and 275,189.36 is: 379,761.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,049.15 : 676,267.88 = 275,189.36 : x
  2. Step 2: Convert to fraction form
    490,049.15/676,267.88 = 275,189.36/x
  3. Step 3: Cross multiply
    490,049.15x = 676,267.88 × 275,189.36
  4. Step 4: Simplify right side
    490,049.15x = 186,101,725,085.76
  5. Step 5: Solve for x
    x = 186,101,725,085.76/490,049.15
  6. Step 6: Final answer
    x = 379,761.35

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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.