Home / 1,326,351.20-1,989,672.60-485,085.20

Finding the Fourth Proportional to 1,326,351.20, 1,989,672.60 and 485,085.20

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Solution

The fourth proportional to 1,326,351.20, 1,989,672.60 and 485,085.20 is: 727,681.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,326,351.20 : 1,989,672.60 = 485,085.20 : x
  2. Step 2: Convert to fraction form
    1,326,351.20/1,989,672.60 = 485,085.20/x
  3. Step 3: Cross multiply
    1,326,351.20x = 1,989,672.60 × 485,085.20
  4. Step 4: Simplify right side
    1,326,351.20x = 965,160,731,105.52
  5. Step 5: Solve for x
    x = 965,160,731,105.52/1,326,351.20
  6. Step 6: Final answer
    x = 727,681.12

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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.