Home / 747,915.60-1,121,873.40-449,317.20

Finding the Fourth Proportional to 747,915.60, 1,121,873.40 and 449,317.20

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Solution

The fourth proportional to 747,915.60, 1,121,873.40 and 449,317.20 is: 673,975.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    747,915.60 : 1,121,873.40 = 449,317.20 : x
  2. Step 2: Convert to fraction form
    747,915.60/1,121,873.40 = 449,317.20/x
  3. Step 3: Cross multiply
    747,915.60x = 1,121,873.40 × 449,317.20
  4. Step 4: Simplify right side
    747,915.60x = 504,077,014,842.48
  5. Step 5: Solve for x
    x = 504,077,014,842.48/747,915.60
  6. Step 6: Final answer
    x = 673,975.80

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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.