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Finding the Fourth Proportional to 637,734.12, 880,074 and 347,346.84

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Solution

The fourth proportional to 637,734.12, 880,074 and 347,346.84 is: 479,339.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    637,734.12 : 880,074 = 347,346.84 : x
  2. Step 2: Convert to fraction form
    637,734.12/880,074 = 347,346.84/x
  3. Step 3: Cross multiply
    637,734.12x = 880,074 × 347,346.84
  4. Step 4: Simplify right side
    637,734.12x = 305,690,922,866.16
  5. Step 5: Solve for x
    x = 305,690,922,866.16/637,734.12
  6. Step 6: Final answer
    x = 479,339.14

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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.