Home / 449,746.80-674,231.40-272,065.20

Finding the Fourth Proportional to 449,746.80, 674,231.40 and 272,065.20

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Solution

The fourth proportional to 449,746.80, 674,231.40 and 272,065.20 is: 407,862.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,746.80 : 674,231.40 = 272,065.20 : x
  2. Step 2: Convert to fraction form
    449,746.80/674,231.40 = 272,065.20/x
  3. Step 3: Cross multiply
    449,746.80x = 674,231.40 × 272,065.20
  4. Step 4: Simplify right side
    449,746.80x = 183,434,900,687.28
  5. Step 5: Solve for x
    x = 183,434,900,687.28/449,746.80
  6. Step 6: Final answer
    x = 407,862.60

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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.