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Finding the Fourth Proportional to 563,053.37, 777,023.73 and 308,388.15

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Solution

The fourth proportional to 563,053.37, 777,023.73 and 308,388.15 is: 425,581.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    563,053.37 : 777,023.73 = 308,388.15 : x
  2. Step 2: Convert to fraction form
    563,053.37/777,023.73 = 308,388.15/x
  3. Step 3: Cross multiply
    563,053.37x = 777,023.73 × 308,388.15
  4. Step 4: Simplify right side
    563,053.37x = 239,624,910,600.80
  5. Step 5: Solve for x
    x = 239,624,910,600.80/563,053.37
  6. Step 6: Final answer
    x = 425,581.17

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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.