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Finding the Fourth Proportional to 616,604.32, 851,022.24 and 358,561.12

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Solution

The fourth proportional to 616,604.32, 851,022.24 and 358,561.12 is: 494,877.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    616,604.32 : 851,022.24 = 358,561.12 : x
  2. Step 2: Convert to fraction form
    616,604.32/851,022.24 = 358,561.12/x
  3. Step 3: Cross multiply
    616,604.32x = 851,022.24 × 358,561.12
  4. Step 4: Simplify right side
    616,604.32x = 305,143,487,519.31
  5. Step 5: Solve for x
    x = 305,143,487,519.31/616,604.32
  6. Step 6: Final answer
    x = 494,877.31

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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.