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Finding the Fourth Proportional to 655,336.77, 903,898.79 and 437,435.56

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Solution

The fourth proportional to 655,336.77, 903,898.79 and 437,435.56 is: 603,350.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    655,336.77 : 903,898.79 = 437,435.56 : x
  2. Step 2: Convert to fraction form
    655,336.77/903,898.79 = 437,435.56/x
  3. Step 3: Cross multiply
    655,336.77x = 903,898.79 × 437,435.56
  4. Step 4: Simplify right side
    655,336.77x = 395,397,473,386.97
  5. Step 5: Solve for x
    x = 395,397,473,386.97/655,336.77
  6. Step 6: Final answer
    x = 603,350.05

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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.