Home / 1,423,025.31-2,131,117.14-813,967.68

Finding the Fourth Proportional to 1,423,025.31, 2,131,117.14 and 813,967.68

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Solution

The fourth proportional to 1,423,025.31, 2,131,117.14 and 813,967.68 is: 1,218,994.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,423,025.31 : 2,131,117.14 = 813,967.68 : x
  2. Step 2: Convert to fraction form
    1,423,025.31/2,131,117.14 = 813,967.68/x
  3. Step 3: Cross multiply
    1,423,025.31x = 2,131,117.14 × 813,967.68
  4. Step 4: Simplify right side
    1,423,025.31x = 1,734,660,480,719.54
  5. Step 5: Solve for x
    x = 1,734,660,480,719.54/1,423,025.31
  6. Step 6: Final answer
    x = 1,218,994.82

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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.