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Finding the Fourth Proportional to 665,401.04, 998,105.88 and 266,075.44

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Solution

The fourth proportional to 665,401.04, 998,105.88 and 266,075.44 is: 399,114.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    665,401.04 : 998,105.88 = 266,075.44 : x
  2. Step 2: Convert to fraction form
    665,401.04/998,105.88 = 266,075.44/x
  3. Step 3: Cross multiply
    665,401.04x = 998,105.88 × 266,075.44
  4. Step 4: Simplify right side
    665,401.04x = 265,571,461,187.59
  5. Step 5: Solve for x
    x = 265,571,461,187.59/665,401.04
  6. Step 6: Final answer
    x = 399,114.89

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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.