Home / 510,351.27-704,279.22-280,903.65

Finding the Fourth Proportional to 510,351.27, 704,279.22 and 280,903.65

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Solution

The fourth proportional to 510,351.27, 704,279.22 and 280,903.65 is: 387,643.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    510,351.27 : 704,279.22 = 280,903.65 : x
  2. Step 2: Convert to fraction form
    510,351.27/704,279.22 = 280,903.65/x
  3. Step 3: Cross multiply
    510,351.27x = 704,279.22 × 280,903.65
  4. Step 4: Simplify right side
    510,351.27x = 197,834,603,517.15
  5. Step 5: Solve for x
    x = 197,834,603,517.15/510,351.27
  6. Step 6: Final answer
    x = 387,643.99

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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.