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Finding the Fourth Proportional to 563,399.52, 777,491.32 and 308,756.56

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Solution

The fourth proportional to 563,399.52, 777,491.32 and 308,756.56 is: 426,084.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    563,399.52 : 777,491.32 = 308,756.56 : x
  2. Step 2: Convert to fraction form
    563,399.52/777,491.32 = 308,756.56/x
  3. Step 3: Cross multiply
    563,399.52x = 777,491.32 × 308,756.56
  4. Step 4: Simplify right side
    563,399.52x = 240,055,545,393.06
  5. Step 5: Solve for x
    x = 240,055,545,393.06/563,399.52
  6. Step 6: Final answer
    x = 426,084.04

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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.