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Finding the Fourth Proportional to 647,168.28, 893,122.62 and 360,690.39

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Solution

The fourth proportional to 647,168.28, 893,122.62 and 360,690.39 is: 497,769.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,168.28 : 893,122.62 = 360,690.39 : x
  2. Step 2: Convert to fraction form
    647,168.28/893,122.62 = 360,690.39/x
  3. Step 3: Cross multiply
    647,168.28x = 893,122.62 × 360,690.39
  4. Step 4: Simplify right side
    647,168.28x = 322,140,746,125.62
  5. Step 5: Solve for x
    x = 322,140,746,125.62/647,168.28
  6. Step 6: Final answer
    x = 497,769.68

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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.