Home / 616,333.89-922,922.55-426,531.45

Finding the Fourth Proportional to 616,333.89, 922,922.55 and 426,531.45

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Solution

The fourth proportional to 616,333.89, 922,922.55 and 426,531.45 is: 638,704.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    616,333.89 : 922,922.55 = 426,531.45 : x
  2. Step 2: Convert to fraction form
    616,333.89/922,922.55 = 426,531.45/x
  3. Step 3: Cross multiply
    616,333.89x = 922,922.55 × 426,531.45
  4. Step 4: Simplify right side
    616,333.89x = 393,655,493,489.20
  5. Step 5: Solve for x
    x = 393,655,493,489.20/616,333.89
  6. Step 6: Final answer
    x = 638,704.93

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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.