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Finding the Fourth Proportional to 478,338.04, 717,507.97 and 449,108.78

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Solution

The fourth proportional to 478,338.04, 717,507.97 and 449,108.78 is: 673,664.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,338.04 : 717,507.97 = 449,108.78 : x
  2. Step 2: Convert to fraction form
    478,338.04/717,507.97 = 449,108.78/x
  3. Step 3: Cross multiply
    478,338.04x = 717,507.97 × 449,108.78
  4. Step 4: Simplify right side
    478,338.04x = 322,239,129,717.98
  5. Step 5: Solve for x
    x = 322,239,129,717.98/478,338.04
  6. Step 6: Final answer
    x = 673,664.03

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1.5x scale

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.