Home / 1,260,406.20-1,891,991.70-787,625.40

Finding the Fourth Proportional to 1,260,406.20, 1,891,991.70 and 787,625.40

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Solution

The fourth proportional to 1,260,406.20, 1,891,991.70 and 787,625.40 is: 1,182,301.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,260,406.20 : 1,891,991.70 = 787,625.40 : x
  2. Step 2: Convert to fraction form
    1,260,406.20/1,891,991.70 = 787,625.40/x
  3. Step 3: Cross multiply
    1,260,406.20x = 1,891,991.70 × 787,625.40
  4. Step 4: Simplify right side
    1,260,406.20x = 1,490,180,719,509.18
  5. Step 5: Solve for x
    x = 1,490,180,719,509.18/1,260,406.20
  6. Step 6: Final answer
    x = 1,182,301.96

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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.