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Finding the Fourth Proportional to 661,272.66, 910,936.53 and 479,450.34

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Solution

The fourth proportional to 661,272.66, 910,936.53 and 479,450.34 is: 660,467.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    661,272.66 : 910,936.53 = 479,450.34 : x
  2. Step 2: Convert to fraction form
    661,272.66/910,936.53 = 479,450.34/x
  3. Step 3: Cross multiply
    661,272.66x = 910,936.53 × 479,450.34
  4. Step 4: Simplify right side
    661,272.66x = 436,748,829,026.92
  5. Step 5: Solve for x
    x = 436,748,829,026.92/661,272.66
  6. Step 6: Final answer
    x = 660,467.09

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1.5x scale

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.