Home / 478,783.28-660,723.09-263,918.72

Finding the Fourth Proportional to 478,783.28, 660,723.09 and 263,918.72

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Solution

The fourth proportional to 478,783.28, 660,723.09 and 263,918.72 is: 364,209.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,783.28 : 660,723.09 = 263,918.72 : x
  2. Step 2: Convert to fraction form
    478,783.28/660,723.09 = 263,918.72/x
  3. Step 3: Cross multiply
    478,783.28x = 660,723.09 × 263,918.72
  4. Step 4: Simplify right side
    478,783.28x = 174,377,192,187.25
  5. Step 5: Solve for x
    x = 174,377,192,187.25/478,783.28
  6. Step 6: Final answer
    x = 364,209.03

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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.