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Finding the Fourth Proportional to 665,363.64, 918,201.66 and 363,557.64

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Solution

The fourth proportional to 665,363.64, 918,201.66 and 363,557.64 is: 501,709.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    665,363.64 : 918,201.66 = 363,557.64 : x
  2. Step 2: Convert to fraction form
    665,363.64/918,201.66 = 363,557.64/x
  3. Step 3: Cross multiply
    665,363.64x = 918,201.66 × 363,557.64
  4. Step 4: Simplify right side
    665,363.64x = 333,819,228,553.68
  5. Step 5: Solve for x
    x = 333,819,228,553.68/665,363.64
  6. Step 6: Final answer
    x = 501,709.45

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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.