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Finding the Fourth Proportional to 553,994.47, 764,512.58 and 299,345.66

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Solution

The fourth proportional to 553,994.47, 764,512.58 and 299,345.66 is: 413,097.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,994.47 : 764,512.58 = 299,345.66 : x
  2. Step 2: Convert to fraction form
    553,994.47/764,512.58 = 299,345.66/x
  3. Step 3: Cross multiply
    553,994.47x = 764,512.58 × 299,345.66
  4. Step 4: Simplify right side
    553,994.47x = 228,853,520,947.31
  5. Step 5: Solve for x
    x = 228,853,520,947.31/553,994.47
  6. Step 6: Final answer
    x = 413,097.12

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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.