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Finding the Fourth Proportional to 617,397.39, 851,738.09 and 362,633.76

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Solution

The fourth proportional to 617,397.39, 851,738.09 and 362,633.76 is: 500,275.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    617,397.39 : 851,738.09 = 362,633.76 : x
  2. Step 2: Convert to fraction form
    617,397.39/851,738.09 = 362,633.76/x
  3. Step 3: Cross multiply
    617,397.39x = 851,738.09 × 362,633.76
  4. Step 4: Simplify right side
    617,397.39x = 308,868,984,298.75
  5. Step 5: Solve for x
    x = 308,868,984,298.75/617,397.39
  6. Step 6: Final answer
    x = 500,275.82

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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.