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Finding the Fourth Proportional to 616,132.40, 922,643.40 and 404,625.20

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Solution

The fourth proportional to 616,132.40, 922,643.40 and 404,625.20 is: 605,916.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    616,132.40 : 922,643.40 = 404,625.20 : x
  2. Step 2: Convert to fraction form
    616,132.40/922,643.40 = 404,625.20/x
  3. Step 3: Cross multiply
    616,132.40x = 922,643.40 × 404,625.20
  4. Step 4: Simplify right side
    616,132.40x = 373,324,770,253.68
  5. Step 5: Solve for x
    x = 373,324,770,253.68/616,132.40
  6. Step 6: Final answer
    x = 605,916.47

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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.