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Finding the Fourth Proportional to 398,330.90, 597,496.35 and 366,838.10

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Solution

The fourth proportional to 398,330.90, 597,496.35 and 366,838.10 is: 550,257.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,330.90 : 597,496.35 = 366,838.10 : x
  2. Step 2: Convert to fraction form
    398,330.90/597,496.35 = 366,838.10/x
  3. Step 3: Cross multiply
    398,330.90x = 597,496.35 × 366,838.10
  4. Step 4: Simplify right side
    398,330.90x = 219,184,425,790.94
  5. Step 5: Solve for x
    x = 219,184,425,790.94/398,330.90
  6. Step 6: Final answer
    x = 550,257.15

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.