Home / 521,617.34-719,834.91-306,766.46

Finding the Fourth Proportional to 521,617.34, 719,834.91 and 306,766.46

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Solution

The fourth proportional to 521,617.34, 719,834.91 and 306,766.46 is: 423,339.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,617.34 : 719,834.91 = 306,766.46 : x
  2. Step 2: Convert to fraction form
    521,617.34/719,834.91 = 306,766.46/x
  3. Step 3: Cross multiply
    521,617.34x = 719,834.91 × 306,766.46
  4. Step 4: Simplify right side
    521,617.34x = 220,821,207,125.12
  5. Step 5: Solve for x
    x = 220,821,207,125.12/521,617.34
  6. Step 6: Final answer
    x = 423,339.47

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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.