Home / 1,243,408.54-1,865,112.70-344,850.28

Finding the Fourth Proportional to 1,243,408.54, 1,865,112.70 and 344,850.28

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Solution

The fourth proportional to 1,243,408.54, 1,865,112.70 and 344,850.28 is: 517,275.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,243,408.54 : 1,865,112.70 = 344,850.28 : x
  2. Step 2: Convert to fraction form
    1,243,408.54/1,865,112.70 = 344,850.28/x
  3. Step 3: Cross multiply
    1,243,408.54x = 1,865,112.70 × 344,850.28
  4. Step 4: Simplify right side
    1,243,408.54x = 643,184,636,826.56
  5. Step 5: Solve for x
    x = 643,184,636,826.56/1,243,408.54
  6. Step 6: Final answer
    x = 517,275.39

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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.