Home / 1,008,478.56-1,391,697.60-555,769.44

Finding the Fourth Proportional to 1,008,478.56, 1,391,697.60 and 555,769.44

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Solution

The fourth proportional to 1,008,478.56, 1,391,697.60 and 555,769.44 is: 766,960.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,008,478.56 : 1,391,697.60 = 555,769.44 : x
  2. Step 2: Convert to fraction form
    1,008,478.56/1,391,697.60 = 555,769.44/x
  3. Step 3: Cross multiply
    1,008,478.56x = 1,391,697.60 × 555,769.44
  4. Step 4: Simplify right side
    1,008,478.56x = 773,462,995,801.34
  5. Step 5: Solve for x
    x = 773,462,995,801.34/1,008,478.56
  6. Step 6: Final answer
    x = 766,960.28

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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.