Home / 908,091.38-1,253,056.36-520,886.74

Finding the Fourth Proportional to 908,091.38, 1,253,056.36 and 520,886.74

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Solution

The fourth proportional to 908,091.38, 1,253,056.36 and 520,886.74 is: 718,760.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    908,091.38 : 1,253,056.36 = 520,886.74 : x
  2. Step 2: Convert to fraction form
    908,091.38/1,253,056.36 = 520,886.74/x
  3. Step 3: Cross multiply
    908,091.38x = 1,253,056.36 × 520,886.74
  4. Step 4: Simplify right side
    908,091.38x = 652,700,442,396.67
  5. Step 5: Solve for x
    x = 652,700,442,396.67/908,091.38
  6. Step 6: Final answer
    x = 718,760.75

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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.