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Finding the Fourth Proportional to 637,675.39, 880,031.82 and 351,195.40

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Solution

The fourth proportional to 637,675.39, 880,031.82 and 351,195.40 is: 484,671.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    637,675.39 : 880,031.82 = 351,195.40 : x
  2. Step 2: Convert to fraction form
    637,675.39/880,031.82 = 351,195.40/x
  3. Step 3: Cross multiply
    637,675.39x = 880,031.82 × 351,195.40
  4. Step 4: Simplify right side
    637,675.39x = 309,063,129,454.65
  5. Step 5: Solve for x
    x = 309,063,129,454.65/637,675.39
  6. Step 6: Final answer
    x = 484,671.56

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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.