Home / 817,220.92-1,226,968.62-418,137.16

Finding the Fourth Proportional to 817,220.92, 1,226,968.62 and 418,137.16

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Solution

The fourth proportional to 817,220.92, 1,226,968.62 and 418,137.16 is: 627,787.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    817,220.92 : 1,226,968.62 = 418,137.16 : x
  2. Step 2: Convert to fraction form
    817,220.92/1,226,968.62 = 418,137.16/x
  3. Step 3: Cross multiply
    817,220.92x = 1,226,968.62 × 418,137.16
  4. Step 4: Simplify right side
    817,220.92x = 513,041,174,175.92
  5. Step 5: Solve for x
    x = 513,041,174,175.92/817,220.92
  6. Step 6: Final answer
    x = 627,787.62

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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.