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Finding the Fourth Proportional to 451,090.20, 676,808.10 and 444,005.40

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Solution

The fourth proportional to 451,090.20, 676,808.10 and 444,005.40 is: 666,178.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,090.20 : 676,808.10 = 444,005.40 : x
  2. Step 2: Convert to fraction form
    451,090.20/676,808.10 = 444,005.40/x
  3. Step 3: Cross multiply
    451,090.20x = 676,808.10 × 444,005.40
  4. Step 4: Simplify right side
    451,090.20x = 300,506,451,163.74
  5. Step 5: Solve for x
    x = 300,506,451,163.74/451,090.20
  6. Step 6: Final answer
    x = 666,178.19

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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.