Home / 709,723.20-1,064,584.80-658,401.60

Finding the Fourth Proportional to 709,723.20, 1,064,584.80 and 658,401.60

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Solution

The fourth proportional to 709,723.20, 1,064,584.80 and 658,401.60 is: 987,602.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    709,723.20 : 1,064,584.80 = 658,401.60 : x
  2. Step 2: Convert to fraction form
    709,723.20/1,064,584.80 = 658,401.60/x
  3. Step 3: Cross multiply
    709,723.20x = 1,064,584.80 × 658,401.60
  4. Step 4: Simplify right side
    709,723.20x = 700,924,335,655.68
  5. Step 5: Solve for x
    x = 700,924,335,655.68/709,723.20
  6. Step 6: Final answer
    x = 987,602.40

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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.