Home / 2,807,943.84-4,212,440.78-1,125,178.56

Finding the Fourth Proportional to 2,807,943.84, 4,212,440.78 and 1,125,178.56

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Solution

The fourth proportional to 2,807,943.84, 4,212,440.78 and 1,125,178.56 is: 1,687,978.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,807,943.84 : 4,212,440.78 = 1,125,178.56 : x
  2. Step 2: Convert to fraction form
    2,807,943.84/4,212,440.78 = 1,125,178.56/x
  3. Step 3: Cross multiply
    2,807,943.84x = 4,212,440.78 × 1,125,178.56
  4. Step 4: Simplify right side
    2,807,943.84x = 4,739,748,045,299.78
  5. Step 5: Solve for x
    x = 4,739,748,045,299.78/2,807,943.84
  6. Step 6: Final answer
    x = 1,687,978.22

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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.