Home / 1,216,994.40-1,825,318.80-418,312.80

Finding the Fourth Proportional to 1,216,994.40, 1,825,318.80 and 418,312.80

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Solution

The fourth proportional to 1,216,994.40, 1,825,318.80 and 418,312.80 is: 627,409.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,216,994.40 : 1,825,318.80 = 418,312.80 : x
  2. Step 2: Convert to fraction form
    1,216,994.40/1,825,318.80 = 418,312.80/x
  3. Step 3: Cross multiply
    1,216,994.40x = 1,825,318.80 × 418,312.80
  4. Step 4: Simplify right side
    1,216,994.40x = 763,554,218,120.64
  5. Step 5: Solve for x
    x = 763,554,218,120.64/1,216,994.40
  6. Step 6: Final answer
    x = 627,409.80

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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.