Home / 678,020.04-1,016,636.22-257,066.28

Finding the Fourth Proportional to 678,020.04, 1,016,636.22 and 257,066.28

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Solution

The fourth proportional to 678,020.04, 1,016,636.22 and 257,066.28 is: 385,450.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    678,020.04 : 1,016,636.22 = 257,066.28 : x
  2. Step 2: Convert to fraction form
    678,020.04/1,016,636.22 = 257,066.28/x
  3. Step 3: Cross multiply
    678,020.04x = 1,016,636.22 × 257,066.28
  4. Step 4: Simplify right side
    678,020.04x = 261,342,891,188.66
  5. Step 5: Solve for x
    x = 261,342,891,188.66/678,020.04
  6. Step 6: Final answer
    x = 385,450.10

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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.