Home / 990,178.60-1,482,606.94-628,390.71

Finding the Fourth Proportional to 990,178.60, 1,482,606.94 and 628,390.71

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Solution

The fourth proportional to 990,178.60, 1,482,606.94 and 628,390.71 is: 940,897.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    990,178.60 : 1,482,606.94 = 628,390.71 : x
  2. Step 2: Convert to fraction form
    990,178.60/1,482,606.94 = 628,390.71/x
  3. Step 3: Cross multiply
    990,178.60x = 1,482,606.94 × 628,390.71
  4. Step 4: Simplify right side
    990,178.60x = 931,656,427,284.78
  5. Step 5: Solve for x
    x = 931,656,427,284.78/990,178.60
  6. Step 6: Final answer
    x = 940,897.35

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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.