Home / 654,291.52-902,936.86-399,783.04

Finding the Fourth Proportional to 654,291.52, 902,936.86 and 399,783.04

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Solution

The fourth proportional to 654,291.52, 902,936.86 and 399,783.04 is: 551,709.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    654,291.52 : 902,936.86 = 399,783.04 : x
  2. Step 2: Convert to fraction form
    654,291.52/902,936.86 = 399,783.04/x
  3. Step 3: Cross multiply
    654,291.52x = 902,936.86 × 399,783.04
  4. Step 4: Simplify right side
    654,291.52x = 360,978,842,818.85
  5. Step 5: Solve for x
    x = 360,978,842,818.85/654,291.52
  6. Step 6: Final answer
    x = 551,709.49

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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.