Home / 747,620.27-1,121,036.33-326,404.07

Finding the Fourth Proportional to 747,620.27, 1,121,036.33 and 326,404.07

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Solution

The fourth proportional to 747,620.27, 1,121,036.33 and 326,404.07 is: 489,434.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    747,620.27 : 1,121,036.33 = 326,404.07 : x
  2. Step 2: Convert to fraction form
    747,620.27/1,121,036.33 = 326,404.07/x
  3. Step 3: Cross multiply
    747,620.27x = 1,121,036.33 × 326,404.07
  4. Step 4: Simplify right side
    747,620.27x = 365,910,813,492.66
  5. Step 5: Solve for x
    x = 365,910,813,492.66/747,620.27
  6. Step 6: Final answer
    x = 489,434.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.