Home / 1,079,739.56-1,490,040.61-627,059.72

Finding the Fourth Proportional to 1,079,739.56, 1,490,040.61 and 627,059.72

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Solution

The fourth proportional to 1,079,739.56, 1,490,040.61 and 627,059.72 is: 865,342.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,079,739.56 : 1,490,040.61 = 627,059.72 : x
  2. Step 2: Convert to fraction form
    1,079,739.56/1,490,040.61 = 627,059.72/x
  3. Step 3: Cross multiply
    1,079,739.56x = 1,490,040.61 × 627,059.72
  4. Step 4: Simplify right side
    1,079,739.56x = 934,344,449,852.68
  5. Step 5: Solve for x
    x = 934,344,449,852.68/1,079,739.56
  6. Step 6: Final answer
    x = 865,342.42

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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.