Home / 990,179.60-1,482,608.44-628,391.71

Finding the Fourth Proportional to 990,179.60, 1,482,608.44 and 628,391.71

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Solution

The fourth proportional to 990,179.60, 1,482,608.44 and 628,391.71 is: 940,898.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    990,179.60 : 1,482,608.44 = 628,391.71 : x
  2. Step 2: Convert to fraction form
    990,179.60/1,482,608.44 = 628,391.71/x
  3. Step 3: Cross multiply
    990,179.60x = 1,482,608.44 × 628,391.71
  4. Step 4: Simplify right side
    990,179.60x = 931,658,852,872.03
  5. Step 5: Solve for x
    x = 931,658,852,872.03/990,179.60
  6. Step 6: Final answer
    x = 940,898.86

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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.