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Finding the Fourth Proportional to 664,481.70, 916,665.93 and 482,912.10

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Solution

The fourth proportional to 664,481.70, 916,665.93 and 482,912.10 is: 666,187.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,481.70 : 916,665.93 = 482,912.10 : x
  2. Step 2: Convert to fraction form
    664,481.70/916,665.93 = 482,912.10/x
  3. Step 3: Cross multiply
    664,481.70x = 916,665.93 × 482,912.10
  4. Step 4: Simplify right side
    664,481.70x = 442,669,069,254.75
  5. Step 5: Solve for x
    x = 442,669,069,254.75/664,481.70
  6. Step 6: Final answer
    x = 666,187.00

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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.