Home / 3,138,158.40-4,707,237.60-863,678.40

Finding the Fourth Proportional to 3,138,158.40, 4,707,237.60 and 863,678.40

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Solution

The fourth proportional to 3,138,158.40, 4,707,237.60 and 863,678.40 is: 1,295,517.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,138,158.40 : 4,707,237.60 = 863,678.40 : x
  2. Step 2: Convert to fraction form
    3,138,158.40/4,707,237.60 = 863,678.40/x
  3. Step 3: Cross multiply
    3,138,158.40x = 4,707,237.60 × 863,678.40
  4. Step 4: Simplify right side
    3,138,158.40x = 4,065,539,438,787.84
  5. Step 5: Solve for x
    x = 4,065,539,438,787.84/3,138,158.40
  6. Step 6: Final answer
    x = 1,295,517.60

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Similar ratio
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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.