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Finding the Fourth Proportional to 435,997.80, 653,996.70 and 310,026.60

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Solution

The fourth proportional to 435,997.80, 653,996.70 and 310,026.60 is: 465,039.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    435,997.80 : 653,996.70 = 310,026.60 : x
  2. Step 2: Convert to fraction form
    435,997.80/653,996.70 = 310,026.60/x
  3. Step 3: Cross multiply
    435,997.80x = 653,996.70 × 310,026.60
  4. Step 4: Simplify right side
    435,997.80x = 202,756,373,312.22
  5. Step 5: Solve for x
    x = 202,756,373,312.22/435,997.80
  6. Step 6: Final answer
    x = 465,039.90

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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.