Home / 521,025.16-718,823.70-316,992.52

Finding the Fourth Proportional to 521,025.16, 718,823.70 and 316,992.52

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Solution

The fourth proportional to 521,025.16, 718,823.70 and 316,992.52 is: 437,333.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,025.16 : 718,823.70 = 316,992.52 : x
  2. Step 2: Convert to fraction form
    521,025.16/718,823.70 = 316,992.52/x
  3. Step 3: Cross multiply
    521,025.16x = 718,823.70 × 316,992.52
  4. Step 4: Simplify right side
    521,025.16x = 227,861,736,098.72
  5. Step 5: Solve for x
    x = 227,861,736,098.72/521,025.16
  6. Step 6: Final answer
    x = 437,333.46

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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.