Home / 948,965.40-1,421,720.10-449,227.80

Finding the Fourth Proportional to 948,965.40, 1,421,720.10 and 449,227.80

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Solution

The fourth proportional to 948,965.40, 1,421,720.10 and 449,227.80 is: 673,023.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    948,965.40 : 1,421,720.10 = 449,227.80 : x
  2. Step 2: Convert to fraction form
    948,965.40/1,421,720.10 = 449,227.80/x
  3. Step 3: Cross multiply
    948,965.40x = 1,421,720.10 × 449,227.80
  4. Step 4: Simplify right side
    948,965.40x = 638,676,192,738.78
  5. Step 5: Solve for x
    x = 638,676,192,738.78/948,965.40
  6. Step 6: Final answer
    x = 673,023.69

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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.