Home / 819,792.30-1,229,688.45-482,486.70

Finding the Fourth Proportional to 819,792.30, 1,229,688.45 and 482,486.70

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Solution

The fourth proportional to 819,792.30, 1,229,688.45 and 482,486.70 is: 723,730.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    819,792.30 : 1,229,688.45 = 482,486.70 : x
  2. Step 2: Convert to fraction form
    819,792.30/1,229,688.45 = 482,486.70/x
  3. Step 3: Cross multiply
    819,792.30x = 1,229,688.45 × 482,486.70
  4. Step 4: Simplify right side
    819,792.30x = 593,308,322,268.62
  5. Step 5: Solve for x
    x = 593,308,322,268.62/819,792.30
  6. Step 6: Final answer
    x = 723,730.05

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Double scale
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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.