Home / 678,448.02-1,017,789.30-229,172.16

Finding the Fourth Proportional to 678,448.02, 1,017,789.30 and 229,172.16

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Solution

The fourth proportional to 678,448.02, 1,017,789.30 and 229,172.16 is: 343,797.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    678,448.02 : 1,017,789.30 = 229,172.16 : x
  2. Step 2: Convert to fraction form
    678,448.02/1,017,789.30 = 229,172.16/x
  3. Step 3: Cross multiply
    678,448.02x = 1,017,789.30 × 229,172.16
  4. Step 4: Simplify right side
    678,448.02x = 233,248,972,305.89
  5. Step 5: Solve for x
    x = 233,248,972,305.89/678,448.02
  6. Step 6: Final answer
    x = 343,797.85

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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.