Home / 1,241,121.60-1,861,901.10-442,866.60

Finding the Fourth Proportional to 1,241,121.60, 1,861,901.10 and 442,866.60

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Solution

The fourth proportional to 1,241,121.60, 1,861,901.10 and 442,866.60 is: 664,377.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,241,121.60 : 1,861,901.10 = 442,866.60 : x
  2. Step 2: Convert to fraction form
    1,241,121.60/1,861,901.10 = 442,866.60/x
  3. Step 3: Cross multiply
    1,241,121.60x = 1,861,901.10 × 442,866.60
  4. Step 4: Simplify right side
    1,241,121.60x = 824,573,809,693.26
  5. Step 5: Solve for x
    x = 824,573,809,693.26/1,241,121.60
  6. Step 6: Final answer
    x = 664,377.94

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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.