Home / 972,922.28-1,342,619.68-543,209

Finding the Fourth Proportional to 972,922.28, 1,342,619.68 and 543,209

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Solution

The fourth proportional to 972,922.28, 1,342,619.68 and 543,209 is: 749,621.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    972,922.28 : 1,342,619.68 = 543,209 : x
  2. Step 2: Convert to fraction form
    972,922.28/1,342,619.68 = 543,209/x
  3. Step 3: Cross multiply
    972,922.28x = 1,342,619.68 × 543,209
  4. Step 4: Simplify right side
    972,922.28x = 729,323,093,753.12
  5. Step 5: Solve for x
    x = 729,323,093,753.12/972,922.28
  6. Step 6: Final answer
    x = 749,621.12

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1.5x scale

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.