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Finding the Fourth Proportional to 655,336.28, 903,898.10 and 437,435.06

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Solution

The fourth proportional to 655,336.28, 903,898.10 and 437,435.06 is: 603,349.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    655,336.28 : 903,898.10 = 437,435.06 : x
  2. Step 2: Convert to fraction form
    655,336.28/903,898.10 = 437,435.06/x
  3. Step 3: Cross multiply
    655,336.28x = 903,898.10 × 437,435.06
  4. Step 4: Simplify right side
    655,336.28x = 395,396,719,607.39
  5. Step 5: Solve for x
    x = 395,396,719,607.39/655,336.28
  6. Step 6: Final answer
    x = 603,349.36

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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.