Home / 989,189.96-1,482,788.03-389,919.15

Finding the Fourth Proportional to 989,189.96, 1,482,788.03 and 389,919.15

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Solution

The fourth proportional to 989,189.96, 1,482,788.03 and 389,919.15 is: 584,485.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    989,189.96 : 1,482,788.03 = 389,919.15 : x
  2. Step 2: Convert to fraction form
    989,189.96/1,482,788.03 = 389,919.15/x
  3. Step 3: Cross multiply
    989,189.96x = 1,482,788.03 × 389,919.15
  4. Step 4: Simplify right side
    989,189.96x = 578,167,446,338.18
  5. Step 5: Solve for x
    x = 578,167,446,338.18/989,189.96
  6. Step 6: Final answer
    x = 584,485.76

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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.