Home / 999,041.20-1,498,561.80-681,780.40

Finding the Fourth Proportional to 999,041.20, 1,498,561.80 and 681,780.40

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Solution

The fourth proportional to 999,041.20, 1,498,561.80 and 681,780.40 is: 1,022,670.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    999,041.20 : 1,498,561.80 = 681,780.40 : x
  2. Step 2: Convert to fraction form
    999,041.20/1,498,561.80 = 681,780.40/x
  3. Step 3: Cross multiply
    999,041.20x = 1,498,561.80 × 681,780.40
  4. Step 4: Simplify right side
    999,041.20x = 1,021,690,063,428.72
  5. Step 5: Solve for x
    x = 1,021,690,063,428.72/999,041.20
  6. Step 6: Final answer
    x = 1,022,670.60

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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.