Home / 709,747.20-1,064,620.80-658,425.60

Finding the Fourth Proportional to 709,747.20, 1,064,620.80 and 658,425.60

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Solution

The fourth proportional to 709,747.20, 1,064,620.80 and 658,425.60 is: 987,638.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    709,747.20 : 1,064,620.80 = 658,425.60 : x
  2. Step 2: Convert to fraction form
    709,747.20/1,064,620.80 = 658,425.60/x
  3. Step 3: Cross multiply
    709,747.20x = 1,064,620.80 × 658,425.60
  4. Step 4: Simplify right side
    709,747.20x = 700,973,589,012.48
  5. Step 5: Solve for x
    x = 700,973,589,012.48/709,747.20
  6. Step 6: Final answer
    x = 987,638.40

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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.