Home / 1,241,318.80-1,861,978.20-442,626.40

Finding the Fourth Proportional to 1,241,318.80, 1,861,978.20 and 442,626.40

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Solution

The fourth proportional to 1,241,318.80, 1,861,978.20 and 442,626.40 is: 663,939.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,241,318.80 : 1,861,978.20 = 442,626.40 : x
  2. Step 2: Convert to fraction form
    1,241,318.80/1,861,978.20 = 442,626.40/x
  3. Step 3: Cross multiply
    1,241,318.80x = 1,861,978.20 × 442,626.40
  4. Step 4: Simplify right side
    1,241,318.80x = 824,160,707,544.48
  5. Step 5: Solve for x
    x = 824,160,707,544.48/1,241,318.80
  6. Step 6: Final answer
    x = 663,939.60

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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.