Home / 817,219.92-1,226,967.12-418,136.16

Finding the Fourth Proportional to 817,219.92, 1,226,967.12 and 418,136.16

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Solution

The fourth proportional to 817,219.92, 1,226,967.12 and 418,136.16 is: 627,786.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    817,219.92 : 1,226,967.12 = 418,136.16 : x
  2. Step 2: Convert to fraction form
    817,219.92/1,226,967.12 = 418,136.16/x
  3. Step 3: Cross multiply
    817,219.92x = 1,226,967.12 × 418,136.16
  4. Step 4: Simplify right side
    817,219.92x = 513,039,320,003.06
  5. Step 5: Solve for x
    x = 513,039,320,003.06/817,219.92
  6. Step 6: Final answer
    x = 627,786.12

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1.5x scale

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.