Home / 638,380.24-880,925.16-351,885.52

Finding the Fourth Proportional to 638,380.24, 880,925.16 and 351,885.52

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Solution

The fourth proportional to 638,380.24, 880,925.16 and 351,885.52 is: 485,580.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,380.24 : 880,925.16 = 351,885.52 : x
  2. Step 2: Convert to fraction form
    638,380.24/880,925.16 = 351,885.52/x
  3. Step 3: Cross multiply
    638,380.24x = 880,925.16 × 351,885.52
  4. Step 4: Simplify right side
    638,380.24x = 309,984,808,007.68
  5. Step 5: Solve for x
    x = 309,984,808,007.68/638,380.24
  6. Step 6: Final answer
    x = 485,580.21

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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.