Home / 778,855.80-1,167,408.90-329,500.20

Finding the Fourth Proportional to 778,855.80, 1,167,408.90 and 329,500.20

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Solution

The fourth proportional to 778,855.80, 1,167,408.90 and 329,500.20 is: 493,880.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,855.80 : 1,167,408.90 = 329,500.20 : x
  2. Step 2: Convert to fraction form
    778,855.80/1,167,408.90 = 329,500.20/x
  3. Step 3: Cross multiply
    778,855.80x = 1,167,408.90 × 329,500.20
  4. Step 4: Simplify right side
    778,855.80x = 384,661,466,031.78
  5. Step 5: Solve for x
    x = 384,661,466,031.78/778,855.80
  6. Step 6: Final answer
    x = 493,880.21

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Double scale
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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.