Home / 1,190,915.20-1,643,464.92-647,053.12

Finding the Fourth Proportional to 1,190,915.20, 1,643,464.92 and 647,053.12

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Solution

The fourth proportional to 1,190,915.20, 1,643,464.92 and 647,053.12 is: 892,934.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,190,915.20 : 1,643,464.92 = 647,053.12 : x
  2. Step 2: Convert to fraction form
    1,190,915.20/1,643,464.92 = 647,053.12/x
  3. Step 3: Cross multiply
    1,190,915.20x = 1,643,464.92 × 647,053.12
  4. Step 4: Simplify right side
    1,190,915.20x = 1,063,409,104,096.55
  5. Step 5: Solve for x
    x = 1,063,409,104,096.55/1,190,915.20
  6. Step 6: Final answer
    x = 892,934.36

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.