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Finding the Fourth Proportional to 553,995.47, 764,513.96 and 299,346.66

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Solution

The fourth proportional to 553,995.47, 764,513.96 and 299,346.66 is: 413,098.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,995.47 : 764,513.96 = 299,346.66 : x
  2. Step 2: Convert to fraction form
    553,995.47/764,513.96 = 299,346.66/x
  3. Step 3: Cross multiply
    553,995.47x = 764,513.96 × 299,346.66
  4. Step 4: Simplify right side
    553,995.47x = 228,854,700,449.37
  5. Step 5: Solve for x
    x = 228,854,700,449.37/553,995.47
  6. Step 6: Final answer
    x = 413,098.51

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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.