Home / 1,340,347.60-2,012,076.60-808,469.20

Finding the Fourth Proportional to 1,340,347.60, 2,012,076.60 and 808,469.20

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Solution

The fourth proportional to 1,340,347.60, 2,012,076.60 and 808,469.20 is: 1,213,641.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,340,347.60 : 2,012,076.60 = 808,469.20 : x
  2. Step 2: Convert to fraction form
    1,340,347.60/2,012,076.60 = 808,469.20/x
  3. Step 3: Cross multiply
    1,340,347.60x = 2,012,076.60 × 808,469.20
  4. Step 4: Simplify right side
    1,340,347.60x = 1,626,701,959,140.72
  5. Step 5: Solve for x
    x = 1,626,701,959,140.72/1,340,347.60
  6. Step 6: Final answer
    x = 1,213,641.86

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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.