Home / 1,454,286.30-2,181,538.80-389,304.78

Finding the Fourth Proportional to 1,454,286.30, 2,181,538.80 and 389,304.78

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Solution

The fourth proportional to 1,454,286.30, 2,181,538.80 and 389,304.78 is: 583,986.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,454,286.30 : 2,181,538.80 = 389,304.78 : x
  2. Step 2: Convert to fraction form
    1,454,286.30/2,181,538.80 = 389,304.78/x
  3. Step 3: Cross multiply
    1,454,286.30x = 2,181,538.80 × 389,304.78
  4. Step 4: Simplify right side
    1,454,286.30x = 849,283,482,595.46
  5. Step 5: Solve for x
    x = 849,283,482,595.46/1,454,286.30
  6. Step 6: Final answer
    x = 583,986.44

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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.