Home / 901,412.88-1,243,947.60-538,819.12

Finding the Fourth Proportional to 901,412.88, 1,243,947.60 and 538,819.12

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Solution

The fourth proportional to 901,412.88, 1,243,947.60 and 538,819.12 is: 743,569.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    901,412.88 : 1,243,947.60 = 538,819.12 : x
  2. Step 2: Convert to fraction form
    901,412.88/1,243,947.60 = 538,819.12/x
  3. Step 3: Cross multiply
    901,412.88x = 1,243,947.60 × 538,819.12
  4. Step 4: Simplify right side
    901,412.88x = 670,262,751,158.11
  5. Step 5: Solve for x
    x = 670,262,751,158.11/901,412.88
  6. Step 6: Final answer
    x = 743,569.09

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.