Home / 747,478.80-1,121,218.20-214,968.60

Finding the Fourth Proportional to 747,478.80, 1,121,218.20 and 214,968.60

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Solution

The fourth proportional to 747,478.80, 1,121,218.20 and 214,968.60 is: 322,452.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    747,478.80 : 1,121,218.20 = 214,968.60 : x
  2. Step 2: Convert to fraction form
    747,478.80/1,121,218.20 = 214,968.60/x
  3. Step 3: Cross multiply
    747,478.80x = 1,121,218.20 × 214,968.60
  4. Step 4: Simplify right side
    747,478.80x = 241,026,706,748.52
  5. Step 5: Solve for x
    x = 241,026,706,748.52/747,478.80
  6. Step 6: Final answer
    x = 322,452.90

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1.5x scale

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.