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Finding the Fourth Proportional to 638,235.85, 880,754.07 and 347,850.04

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Solution

The fourth proportional to 638,235.85, 880,754.07 and 347,850.04 is: 480,026.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,235.85 : 880,754.07 = 347,850.04 : x
  2. Step 2: Convert to fraction form
    638,235.85/880,754.07 = 347,850.04/x
  3. Step 3: Cross multiply
    638,235.85x = 880,754.07 × 347,850.04
  4. Step 4: Simplify right side
    638,235.85x = 306,370,338,479.66
  5. Step 5: Solve for x
    x = 306,370,338,479.66/638,235.85
  6. Step 6: Final answer
    x = 480,026.84

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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.