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Finding the Fourth Proportional to 602,901.62, 903,878.79 and 412,786.90

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Solution

The fourth proportional to 602,901.62, 903,878.79 and 412,786.90 is: 618,856.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    602,901.62 : 903,878.79 = 412,786.90 : x
  2. Step 2: Convert to fraction form
    602,901.62/903,878.79 = 412,786.90/x
  3. Step 3: Cross multiply
    602,901.62x = 903,878.79 × 412,786.90
  4. Step 4: Simplify right side
    602,901.62x = 373,109,323,699.85
  5. Step 5: Solve for x
    x = 373,109,323,699.85/602,901.62
  6. Step 6: Final answer
    x = 618,856.06

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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.