Home / 726,309.60-1,089,464.40-658,658.40

Finding the Fourth Proportional to 726,309.60, 1,089,464.40 and 658,658.40

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Solution

The fourth proportional to 726,309.60, 1,089,464.40 and 658,658.40 is: 987,987.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    726,309.60 : 1,089,464.40 = 658,658.40 : x
  2. Step 2: Convert to fraction form
    726,309.60/1,089,464.40 = 658,658.40/x
  3. Step 3: Cross multiply
    726,309.60x = 1,089,464.40 × 658,658.40
  4. Step 4: Simplify right side
    726,309.60x = 717,584,878,560.96
  5. Step 5: Solve for x
    x = 717,584,878,560.96/726,309.60
  6. Step 6: Final answer
    x = 987,987.60

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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.