Home / 1,208,188.61-1,812,241.87-309,639.17

Finding the Fourth Proportional to 1,208,188.61, 1,812,241.87 and 309,639.17

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Solution

The fourth proportional to 1,208,188.61, 1,812,241.87 and 309,639.17 is: 464,448.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,208,188.61 : 1,812,241.87 = 309,639.17 : x
  2. Step 2: Convert to fraction form
    1,208,188.61/1,812,241.87 = 309,639.17/x
  3. Step 3: Cross multiply
    1,208,188.61x = 1,812,241.87 × 309,639.17
  4. Step 4: Simplify right side
    1,208,188.61x = 561,141,068,466.05
  5. Step 5: Solve for x
    x = 561,141,068,466.05/1,208,188.61
  6. Step 6: Final answer
    x = 464,448.24

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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.