Home / 678,745.73-1,017,172.80-510,069.08

Finding the Fourth Proportional to 678,745.73, 1,017,172.80 and 510,069.08

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Solution

The fourth proportional to 678,745.73, 1,017,172.80 and 510,069.08 is: 764,392.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    678,745.73 : 1,017,172.80 = 510,069.08 : x
  2. Step 2: Convert to fraction form
    678,745.73/1,017,172.80 = 510,069.08/x
  3. Step 3: Cross multiply
    678,745.73x = 1,017,172.80 × 510,069.08
  4. Step 4: Simplify right side
    678,745.73x = 518,828,396,839.96
  5. Step 5: Solve for x
    x = 518,828,396,839.96/678,745.73
  6. Step 6: Final answer
    x = 764,392.87

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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.