Home / 869,390.40-1,304,085.60-729,422.40

Finding the Fourth Proportional to 869,390.40, 1,304,085.60 and 729,422.40

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Solution

The fourth proportional to 869,390.40, 1,304,085.60 and 729,422.40 is: 1,094,133.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    869,390.40 : 1,304,085.60 = 729,422.40 : x
  2. Step 2: Convert to fraction form
    869,390.40/1,304,085.60 = 729,422.40/x
  3. Step 3: Cross multiply
    869,390.40x = 1,304,085.60 × 729,422.40
  4. Step 4: Simplify right side
    869,390.40x = 951,229,248,157.44
  5. Step 5: Solve for x
    x = 951,229,248,157.44/869,390.40
  6. Step 6: Final answer
    x = 1,094,133.60

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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.