Home / 1,207,385.60-1,811,078.40-906,235.70

Finding the Fourth Proportional to 1,207,385.60, 1,811,078.40 and 906,235.70

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Solution

The fourth proportional to 1,207,385.60, 1,811,078.40 and 906,235.70 is: 1,359,353.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,207,385.60 : 1,811,078.40 = 906,235.70 : x
  2. Step 2: Convert to fraction form
    1,207,385.60/1,811,078.40 = 906,235.70/x
  3. Step 3: Cross multiply
    1,207,385.60x = 1,811,078.40 × 906,235.70
  4. Step 4: Simplify right side
    1,207,385.60x = 1,641,263,901,578.88
  5. Step 5: Solve for x
    x = 1,641,263,901,578.88/1,207,385.60
  6. Step 6: Final answer
    x = 1,359,353.55

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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.