Home / 1,287,903.40-1,932,200.70-1,148,626.60

Finding the Fourth Proportional to 1,287,903.40, 1,932,200.70 and 1,148,626.60

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Solution

The fourth proportional to 1,287,903.40, 1,932,200.70 and 1,148,626.60 is: 1,723,248.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,287,903.40 : 1,932,200.70 = 1,148,626.60 : x
  2. Step 2: Convert to fraction form
    1,287,903.40/1,932,200.70 = 1,148,626.60/x
  3. Step 3: Cross multiply
    1,287,903.40x = 1,932,200.70 × 1,148,626.60
  4. Step 4: Simplify right side
    1,287,903.40x = 2,219,377,120,558.62
  5. Step 5: Solve for x
    x = 2,219,377,120,558.62/1,287,903.40
  6. Step 6: Final answer
    x = 1,723,248.13

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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.