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Finding the Fourth Proportional to 640,532.52, 884,022.78 and 368,594.86

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Solution

The fourth proportional to 640,532.52, 884,022.78 and 368,594.86 is: 508,711.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    640,532.52 : 884,022.78 = 368,594.86 : x
  2. Step 2: Convert to fraction form
    640,532.52/884,022.78 = 368,594.86/x
  3. Step 3: Cross multiply
    640,532.52x = 884,022.78 × 368,594.86
  4. Step 4: Simplify right side
    640,532.52x = 325,846,252,830.91
  5. Step 5: Solve for x
    x = 325,846,252,830.91/640,532.52
  6. Step 6: Final answer
    x = 508,711.49

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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.