Home / 759,985.40-1,139,978.10-199,076.60

Finding the Fourth Proportional to 759,985.40, 1,139,978.10 and 199,076.60

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Solution

The fourth proportional to 759,985.40, 1,139,978.10 and 199,076.60 is: 298,614.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    759,985.40 : 1,139,978.10 = 199,076.60 : x
  2. Step 2: Convert to fraction form
    759,985.40/1,139,978.10 = 199,076.60/x
  3. Step 3: Cross multiply
    759,985.40x = 1,139,978.10 × 199,076.60
  4. Step 4: Simplify right side
    759,985.40x = 226,942,964,222.46
  5. Step 5: Solve for x
    x = 226,942,964,222.46/759,985.40
  6. Step 6: Final answer
    x = 298,614.90

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Similar ratio
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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.