Home / 687,226.29-948,424.23-381,360.57

Finding the Fourth Proportional to 687,226.29, 948,424.23 and 381,360.57

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Solution

The fourth proportional to 687,226.29, 948,424.23 and 381,360.57 is: 526,306.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    687,226.29 : 948,424.23 = 381,360.57 : x
  2. Step 2: Convert to fraction form
    687,226.29/948,424.23 = 381,360.57/x
  3. Step 3: Cross multiply
    687,226.29x = 948,424.23 × 381,360.57
  4. Step 4: Simplify right side
    687,226.29x = 361,691,604,954.61
  5. Step 5: Solve for x
    x = 361,691,604,954.61/687,226.29
  6. Step 6: Final answer
    x = 526,306.41

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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.