Home / 972,912.88-1,342,563.36-543,220.23

Finding the Fourth Proportional to 972,912.88, 1,342,563.36 and 543,220.23

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Solution

The fourth proportional to 972,912.88, 1,342,563.36 and 543,220.23 is: 749,612.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    972,912.88 : 1,342,563.36 = 543,220.23 : x
  2. Step 2: Convert to fraction form
    972,912.88/1,342,563.36 = 543,220.23/x
  3. Step 3: Cross multiply
    972,912.88x = 1,342,563.36 × 543,220.23
  4. Step 4: Simplify right side
    972,912.88x = 729,307,577,208.77
  5. Step 5: Solve for x
    x = 729,307,577,208.77/972,912.88
  6. Step 6: Final answer
    x = 749,612.42

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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.