Home / 872,557.20-1,305,725.40-605,062.80

Finding the Fourth Proportional to 872,557.20, 1,305,725.40 and 605,062.80

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Solution

The fourth proportional to 872,557.20, 1,305,725.40 and 605,062.80 is: 905,437.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    872,557.20 : 1,305,725.40 = 605,062.80 : x
  2. Step 2: Convert to fraction form
    872,557.20/1,305,725.40 = 605,062.80/x
  3. Step 3: Cross multiply
    872,557.20x = 1,305,725.40 × 605,062.80
  4. Step 4: Simplify right side
    872,557.20x = 790,045,866,555.12
  5. Step 5: Solve for x
    x = 790,045,866,555.12/872,557.20
  6. Step 6: Final answer
    x = 905,437.34

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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.