Home / 478,629.45-660,505.41-263,769.66

Finding the Fourth Proportional to 478,629.45, 660,505.41 and 263,769.66

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Solution

The fourth proportional to 478,629.45, 660,505.41 and 263,769.66 is: 364,000.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,629.45 : 660,505.41 = 263,769.66 : x
  2. Step 2: Convert to fraction form
    478,629.45/660,505.41 = 263,769.66/x
  3. Step 3: Cross multiply
    478,629.45x = 660,505.41 × 263,769.66
  4. Step 4: Simplify right side
    478,629.45x = 174,221,287,423.86
  5. Step 5: Solve for x
    x = 174,221,287,423.86/478,629.45
  6. Step 6: Final answer
    x = 364,000.35

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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.