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Finding the Fourth Proportional to 655,131.11, 904,101.02 and 356,784.98

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Solution

The fourth proportional to 655,131.11, 904,101.02 and 356,784.98 is: 492,374.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    655,131.11 : 904,101.02 = 356,784.98 : x
  2. Step 2: Convert to fraction form
    655,131.11/904,101.02 = 356,784.98/x
  3. Step 3: Cross multiply
    655,131.11x = 904,101.02 × 356,784.98
  4. Step 4: Simplify right side
    655,131.11x = 322,569,660,911.52
  5. Step 5: Solve for x
    x = 322,569,660,911.52/655,131.11
  6. Step 6: Final answer
    x = 492,374.20

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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.