Home / 1,189,548.06-1,641,580.14-645,684.30

Finding the Fourth Proportional to 1,189,548.06, 1,641,580.14 and 645,684.30

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Solution

The fourth proportional to 1,189,548.06, 1,641,580.14 and 645,684.30 is: 891,046.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,189,548.06 : 1,641,580.14 = 645,684.30 : x
  2. Step 2: Convert to fraction form
    1,189,548.06/1,641,580.14 = 645,684.30/x
  3. Step 3: Cross multiply
    1,189,548.06x = 1,641,580.14 × 645,684.30
  4. Step 4: Simplify right side
    1,189,548.06x = 1,059,942,523,589.80
  5. Step 5: Solve for x
    x = 1,059,942,523,589.80/1,189,548.06
  6. Step 6: Final answer
    x = 891,046.41

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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.