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Finding the Fourth Proportional to 999,767.80, 1,499,870.40 and 325,734.40

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Solution

The fourth proportional to 999,767.80, 1,499,870.40 and 325,734.40 is: 488,672.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    999,767.80 : 1,499,870.40 = 325,734.40 : x
  2. Step 2: Convert to fraction form
    999,767.80/1,499,870.40 = 325,734.40/x
  3. Step 3: Cross multiply
    999,767.80x = 1,499,870.40 × 325,734.40
  4. Step 4: Simplify right side
    999,767.80x = 488,559,384,821.76
  5. Step 5: Solve for x
    x = 488,559,384,821.76/999,767.80
  6. Step 6: Final answer
    x = 488,672.85

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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.