Home / 678,026.04-1,016,645.22-257,072.28

Finding the Fourth Proportional to 678,026.04, 1,016,645.22 and 257,072.28

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Solution

The fourth proportional to 678,026.04, 1,016,645.22 and 257,072.28 is: 385,459.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    678,026.04 : 1,016,645.22 = 257,072.28 : x
  2. Step 2: Convert to fraction form
    678,026.04/1,016,645.22 = 257,072.28/x
  3. Step 3: Cross multiply
    678,026.04x = 1,016,645.22 × 257,072.28
  4. Step 4: Simplify right side
    678,026.04x = 261,351,304,656.50
  5. Step 5: Solve for x
    x = 261,351,304,656.50/678,026.04
  6. Step 6: Final answer
    x = 385,459.10

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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.