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Finding the Fourth Proportional to 637,707.63, 880,031.03 and 351,221.61

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Solution

The fourth proportional to 637,707.63, 880,031.03 and 351,221.61 is: 484,682.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    637,707.63 : 880,031.03 = 351,221.61 : x
  2. Step 2: Convert to fraction form
    637,707.63/880,031.03 = 351,221.61/x
  3. Step 3: Cross multiply
    637,707.63x = 880,031.03 × 351,221.61
  4. Step 4: Simplify right side
    637,707.63x = 309,085,913,450.45
  5. Step 5: Solve for x
    x = 309,085,913,450.45/637,707.63
  6. Step 6: Final answer
    x = 484,682.79

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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.