Home / 1,267,497.60-1,901,246.40-763,612.80

Finding the Fourth Proportional to 1,267,497.60, 1,901,246.40 and 763,612.80

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Solution

The fourth proportional to 1,267,497.60, 1,901,246.40 and 763,612.80 is: 1,145,419.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,267,497.60 : 1,901,246.40 = 763,612.80 : x
  2. Step 2: Convert to fraction form
    1,267,497.60/1,901,246.40 = 763,612.80/x
  3. Step 3: Cross multiply
    1,267,497.60x = 1,901,246.40 × 763,612.80
  4. Step 4: Simplify right side
    1,267,497.60x = 1,451,816,086,993.92
  5. Step 5: Solve for x
    x = 1,451,816,086,993.92/1,267,497.60
  6. Step 6: Final answer
    x = 1,145,419.20

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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.