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Finding the Fourth Proportional to 553,787.04, 764,226.45 and 299,138.34

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Solution

The fourth proportional to 553,787.04, 764,226.45 and 299,138.34 is: 412,811.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,787.04 : 764,226.45 = 299,138.34 : x
  2. Step 2: Convert to fraction form
    553,787.04/764,226.45 = 299,138.34/x
  3. Step 3: Cross multiply
    553,787.04x = 764,226.45 × 299,138.34
  4. Step 4: Simplify right side
    553,787.04x = 228,609,431,637.09
  5. Step 5: Solve for x
    x = 228,609,431,637.09/553,787.04
  6. Step 6: Final answer
    x = 412,811.09

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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.