Home / 880,812.43-1,215,463.52-518,166.21

Finding the Fourth Proportional to 880,812.43, 1,215,463.52 and 518,166.21

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Solution

The fourth proportional to 880,812.43, 1,215,463.52 and 518,166.21 is: 715,035.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    880,812.43 : 1,215,463.52 = 518,166.21 : x
  2. Step 2: Convert to fraction form
    880,812.43/1,215,463.52 = 518,166.21/x
  3. Step 3: Cross multiply
    880,812.43x = 1,215,463.52 × 518,166.21
  4. Step 4: Simplify right side
    880,812.43x = 629,812,131,405.06
  5. Step 5: Solve for x
    x = 629,812,131,405.06/880,812.43
  6. Step 6: Final answer
    x = 715,035.47

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Double scale
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1.5x scale

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.