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Finding the Fourth Proportional to 485,525.50, 670,065.06 and 267,776.76

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Solution

The fourth proportional to 485,525.50, 670,065.06 and 267,776.76 is: 369,553.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,525.50 : 670,065.06 = 267,776.76 : x
  2. Step 2: Convert to fraction form
    485,525.50/670,065.06 = 267,776.76/x
  3. Step 3: Cross multiply
    485,525.50x = 670,065.06 × 267,776.76
  4. Step 4: Simplify right side
    485,525.50x = 179,427,850,756.01
  5. Step 5: Solve for x
    x = 179,427,850,756.01/485,525.50
  6. Step 6: Final answer
    x = 369,553.92

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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.