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Finding the Fourth Proportional to 563,662.40, 777,860.48 and 321,976.96

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Solution

The fourth proportional to 563,662.40, 777,860.48 and 321,976.96 is: 444,331.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    563,662.40 : 777,860.48 = 321,976.96 : x
  2. Step 2: Convert to fraction form
    563,662.40/777,860.48 = 321,976.96/x
  3. Step 3: Cross multiply
    563,662.40x = 777,860.48 × 321,976.96
  4. Step 4: Simplify right side
    563,662.40x = 250,453,152,654.54
  5. Step 5: Solve for x
    x = 250,453,152,654.54/563,662.40
  6. Step 6: Final answer
    x = 444,331.84

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1.5x scale

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.