Home / 403,409.30-605,487.85-203,870.14

Finding the Fourth Proportional to 403,409.30, 605,487.85 and 203,870.14

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Solution

The fourth proportional to 403,409.30, 605,487.85 and 203,870.14 is: 305,994.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,409.30 : 605,487.85 = 203,870.14 : x
  2. Step 2: Convert to fraction form
    403,409.30/605,487.85 = 203,870.14/x
  3. Step 3: Cross multiply
    403,409.30x = 605,487.85 × 203,870.14
  4. Step 4: Simplify right side
    403,409.30x = 123,440,890,724.40
  5. Step 5: Solve for x
    x = 123,440,890,724.40/403,409.30
  6. Step 6: Final answer
    x = 305,994.17

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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.