Home / 449,986.20-675,152.10-442,901.40

Finding the Fourth Proportional to 449,986.20, 675,152.10 and 442,901.40

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Solution

The fourth proportional to 449,986.20, 675,152.10 and 442,901.40 is: 664,522.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,986.20 : 675,152.10 = 442,901.40 : x
  2. Step 2: Convert to fraction form
    449,986.20/675,152.10 = 442,901.40/x
  3. Step 3: Cross multiply
    449,986.20x = 675,152.10 × 442,901.40
  4. Step 4: Simplify right side
    449,986.20x = 299,025,810,302.94
  5. Step 5: Solve for x
    x = 299,025,810,302.94/449,986.20
  6. Step 6: Final answer
    x = 664,522.18

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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.