Home / 945,999.90-1,418,999.85-448,335.90

Finding the Fourth Proportional to 945,999.90, 1,418,999.85 and 448,335.90

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Solution

The fourth proportional to 945,999.90, 1,418,999.85 and 448,335.90 is: 672,503.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    945,999.90 : 1,418,999.85 = 448,335.90 : x
  2. Step 2: Convert to fraction form
    945,999.90/1,418,999.85 = 448,335.90/x
  3. Step 3: Cross multiply
    945,999.90x = 1,418,999.85 × 448,335.90
  4. Step 4: Simplify right side
    945,999.90x = 636,188,574,849.62
  5. Step 5: Solve for x
    x = 636,188,574,849.62/945,999.90
  6. Step 6: Final answer
    x = 672,503.85

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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.