Home / 638,122.37-880,597.53-347,736.47

Finding the Fourth Proportional to 638,122.37, 880,597.53 and 347,736.47

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Solution

The fourth proportional to 638,122.37, 880,597.53 and 347,736.47 is: 479,870.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,122.37 : 880,597.53 = 347,736.47 : x
  2. Step 2: Convert to fraction form
    638,122.37/880,597.53 = 347,736.47/x
  3. Step 3: Cross multiply
    638,122.37x = 880,597.53 × 347,736.47
  4. Step 4: Simplify right side
    638,122.37x = 306,215,872,169.93
  5. Step 5: Solve for x
    x = 306,215,872,169.93/638,122.37
  6. Step 6: Final answer
    x = 479,870.15

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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.