Home / 1,377,242.20-2,065,863.30-430,708.60

Finding the Fourth Proportional to 1,377,242.20, 2,065,863.30 and 430,708.60

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Solution

The fourth proportional to 1,377,242.20, 2,065,863.30 and 430,708.60 is: 646,062.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,377,242.20 : 2,065,863.30 = 430,708.60 : x
  2. Step 2: Convert to fraction form
    1,377,242.20/2,065,863.30 = 430,708.60/x
  3. Step 3: Cross multiply
    1,377,242.20x = 2,065,863.30 × 430,708.60
  4. Step 4: Simplify right side
    1,377,242.20x = 889,785,089,734.38
  5. Step 5: Solve for x
    x = 889,785,089,734.38/1,377,242.20
  6. Step 6: Final answer
    x = 646,062.90

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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.