Home / 972,921.54-1,342,634.33-543,217.05

Finding the Fourth Proportional to 972,921.54, 1,342,634.33 and 543,217.05

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Solution

The fourth proportional to 972,921.54, 1,342,634.33 and 543,217.05 is: 749,640.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    972,921.54 : 1,342,634.33 = 543,217.05 : x
  2. Step 2: Convert to fraction form
    972,921.54/1,342,634.33 = 543,217.05/x
  3. Step 3: Cross multiply
    972,921.54x = 1,342,634.33 × 543,217.05
  4. Step 4: Simplify right side
    972,921.54x = 729,341,861,329.37
  5. Step 5: Solve for x
    x = 729,341,861,329.37/972,921.54
  6. Step 6: Final answer
    x = 749,640.98

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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.