Home / 908,449.80-1,253,266.71-540,720.72

Finding the Fourth Proportional to 908,449.80, 1,253,266.71 and 540,720.72

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Solution

The fourth proportional to 908,449.80, 1,253,266.71 and 540,720.72 is: 745,960.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    908,449.80 : 1,253,266.71 = 540,720.72 : x
  2. Step 2: Convert to fraction form
    908,449.80/1,253,266.71 = 540,720.72/x
  3. Step 3: Cross multiply
    908,449.80x = 1,253,266.71 × 540,720.72
  4. Step 4: Simplify right side
    908,449.80x = 677,667,277,783.23
  5. Step 5: Solve for x
    x = 677,667,277,783.23/908,449.80
  6. Step 6: Final answer
    x = 745,960.07

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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.