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Finding the Fourth Proportional to 671,481.72, 926,616.78 and 369,656.28

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Solution

The fourth proportional to 671,481.72, 926,616.78 and 369,656.28 is: 510,110.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    671,481.72 : 926,616.78 = 369,656.28 : x
  2. Step 2: Convert to fraction form
    671,481.72/926,616.78 = 369,656.28/x
  3. Step 3: Cross multiply
    671,481.72x = 926,616.78 × 369,656.28
  4. Step 4: Simplify right side
    671,481.72x = 342,529,711,880.38
  5. Step 5: Solve for x
    x = 342,529,711,880.38/671,481.72
  6. Step 6: Final answer
    x = 510,110.26

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1.5x scale

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.