Home / 1,260,313.60-1,890,470.40-787,532.80

Finding the Fourth Proportional to 1,260,313.60, 1,890,470.40 and 787,532.80

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Solution

The fourth proportional to 1,260,313.60, 1,890,470.40 and 787,532.80 is: 1,181,299.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,260,313.60 : 1,890,470.40 = 787,532.80 : x
  2. Step 2: Convert to fraction form
    1,260,313.60/1,890,470.40 = 787,532.80/x
  3. Step 3: Cross multiply
    1,260,313.60x = 1,890,470.40 × 787,532.80
  4. Step 4: Simplify right side
    1,260,313.60x = 1,488,807,447,429.12
  5. Step 5: Solve for x
    x = 1,488,807,447,429.12/1,260,313.60
  6. Step 6: Final answer
    x = 1,181,299.20

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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.