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Finding the Fourth Proportional to 563,295.87, 777,351.33 and 308,656.17

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Solution

The fourth proportional to 563,295.87, 777,351.33 and 308,656.17 is: 425,947.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    563,295.87 : 777,351.33 = 308,656.17 : x
  2. Step 2: Convert to fraction form
    563,295.87/777,351.33 = 308,656.17/x
  3. Step 3: Cross multiply
    563,295.87x = 777,351.33 × 308,656.17
  4. Step 4: Simplify right side
    563,295.87x = 239,934,284,262.21
  5. Step 5: Solve for x
    x = 239,934,284,262.21/563,295.87
  6. Step 6: Final answer
    x = 425,947.17

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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.