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Finding the Fourth Proportional to 648,889.71, 973,542.51 and 454,345.57

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Solution

The fourth proportional to 648,889.71, 973,542.51 and 454,345.57 is: 681,663.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,889.71 : 973,542.51 = 454,345.57 : x
  2. Step 2: Convert to fraction form
    648,889.71/973,542.51 = 454,345.57/x
  3. Step 3: Cross multiply
    648,889.71x = 973,542.51 × 454,345.57
  4. Step 4: Simplify right side
    648,889.71x = 442,324,726,625.18
  5. Step 5: Solve for x
    x = 442,324,726,625.18/648,889.71
  6. Step 6: Final answer
    x = 681,663.96

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.