Home / 1,244,389.20-1,867,966.20-771,608.40

Finding the Fourth Proportional to 1,244,389.20, 1,867,966.20 and 771,608.40

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Solution

The fourth proportional to 1,244,389.20, 1,867,966.20 and 771,608.40 is: 1,158,269.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,244,389.20 : 1,867,966.20 = 771,608.40 : x
  2. Step 2: Convert to fraction form
    1,244,389.20/1,867,966.20 = 771,608.40/x
  3. Step 3: Cross multiply
    1,244,389.20x = 1,867,966.20 × 771,608.40
  4. Step 4: Simplify right side
    1,244,389.20x = 1,441,338,410,836.08
  5. Step 5: Solve for x
    x = 1,441,338,410,836.08/1,244,389.20
  6. Step 6: Final answer
    x = 1,158,269.78

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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.