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Finding the Fourth Proportional to 637,873.30, 880,314.78 and 351,444.88

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Solution

The fourth proportional to 637,873.30, 880,314.78 and 351,444.88 is: 485,021.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    637,873.30 : 880,314.78 = 351,444.88 : x
  2. Step 2: Convert to fraction form
    637,873.30/880,314.78 = 351,444.88/x
  3. Step 3: Cross multiply
    637,873.30x = 880,314.78 × 351,444.88
  4. Step 4: Simplify right side
    637,873.30x = 309,382,122,219.33
  5. Step 5: Solve for x
    x = 309,382,122,219.33/637,873.30
  6. Step 6: Final answer
    x = 485,021.28

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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.