Home / 676,321.85-1,013,808.76-338,330.72

Finding the Fourth Proportional to 676,321.85, 1,013,808.76 and 338,330.72

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Solution

The fourth proportional to 676,321.85, 1,013,808.76 and 338,330.72 is: 507,158.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    676,321.85 : 1,013,808.76 = 338,330.72 : x
  2. Step 2: Convert to fraction form
    676,321.85/1,013,808.76 = 338,330.72/x
  3. Step 3: Cross multiply
    676,321.85x = 1,013,808.76 × 338,330.72
  4. Step 4: Simplify right side
    676,321.85x = 343,002,648,555.98
  5. Step 5: Solve for x
    x = 343,002,648,555.98/676,321.85
  6. Step 6: Final answer
    x = 507,158.90

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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.