Home / 678,061.92-1,016,697.36-204,605.28

Finding the Fourth Proportional to 678,061.92, 1,016,697.36 and 204,605.28

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Solution

The fourth proportional to 678,061.92, 1,016,697.36 and 204,605.28 is: 306,788.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    678,061.92 : 1,016,697.36 = 204,605.28 : x
  2. Step 2: Convert to fraction form
    678,061.92/1,016,697.36 = 204,605.28/x
  3. Step 3: Cross multiply
    678,061.92x = 1,016,697.36 × 204,605.28
  4. Step 4: Simplify right side
    678,061.92x = 208,021,648,018.06
  5. Step 5: Solve for x
    x = 208,021,648,018.06/678,061.92
  6. Step 6: Final answer
    x = 306,788.57

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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.