Home / 1,190,884.95-1,643,392.80-647,008.43

Finding the Fourth Proportional to 1,190,884.95, 1,643,392.80 and 647,008.43

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Solution

The fourth proportional to 1,190,884.95, 1,643,392.80 and 647,008.43 is: 892,856.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,190,884.95 : 1,643,392.80 = 647,008.43 : x
  2. Step 2: Convert to fraction form
    1,190,884.95/1,643,392.80 = 647,008.43/x
  3. Step 3: Cross multiply
    1,190,884.95x = 1,643,392.80 × 647,008.43
  4. Step 4: Simplify right side
    1,190,884.95x = 1,063,288,987,184.34
  5. Step 5: Solve for x
    x = 1,063,288,987,184.34/1,190,884.95
  6. Step 6: Final answer
    x = 892,856.18

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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.