Home / 638,225.88-880,736.55-347,846.64

Finding the Fourth Proportional to 638,225.88, 880,736.55 and 347,846.64

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Solution

The fourth proportional to 638,225.88, 880,736.55 and 347,846.64 is: 480,020.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,225.88 : 880,736.55 = 347,846.64 : x
  2. Step 2: Convert to fraction form
    638,225.88/880,736.55 = 347,846.64/x
  3. Step 3: Cross multiply
    638,225.88x = 880,736.55 × 347,846.64
  4. Step 4: Simplify right side
    638,225.88x = 306,361,249,642.69
  5. Step 5: Solve for x
    x = 306,361,249,642.69/638,225.88
  6. Step 6: Final answer
    x = 480,020.10

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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.