Home / 748,510.80-1,122,766.20-275,134.65

Finding the Fourth Proportional to 748,510.80, 1,122,766.20 and 275,134.65

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Solution

The fourth proportional to 748,510.80, 1,122,766.20 and 275,134.65 is: 412,701.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    748,510.80 : 1,122,766.20 = 275,134.65 : x
  2. Step 2: Convert to fraction form
    748,510.80/1,122,766.20 = 275,134.65/x
  3. Step 3: Cross multiply
    748,510.80x = 1,122,766.20 × 275,134.65
  4. Step 4: Simplify right side
    748,510.80x = 308,911,885,468.83
  5. Step 5: Solve for x
    x = 308,911,885,468.83/748,510.80
  6. Step 6: Final answer
    x = 412,701.98

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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.