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Finding the Fourth Proportional to 563,403.16, 777,516.29 and 308,754.37

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Solution

The fourth proportional to 563,403.16, 777,516.29 and 308,754.37 is: 426,091.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    563,403.16 : 777,516.29 = 308,754.37 : x
  2. Step 2: Convert to fraction form
    563,403.16/777,516.29 = 308,754.37/x
  3. Step 3: Cross multiply
    563,403.16x = 777,516.29 × 308,754.37
  4. Step 4: Simplify right side
    563,403.16x = 240,061,552,283.69
  5. Step 5: Solve for x
    x = 240,061,552,283.69/563,403.16
  6. Step 6: Final answer
    x = 426,091.95

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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.