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Finding the Fourth Proportional to 664,084.84, 916,435.92 and 362,278.84

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Solution

The fourth proportional to 664,084.84, 916,435.92 and 362,278.84 is: 499,944.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,084.84 : 916,435.92 = 362,278.84 : x
  2. Step 2: Convert to fraction form
    664,084.84/916,435.92 = 362,278.84/x
  3. Step 3: Cross multiply
    664,084.84x = 916,435.92 × 362,278.84
  4. Step 4: Simplify right side
    664,084.84x = 332,005,342,031.93
  5. Step 5: Solve for x
    x = 332,005,342,031.93/664,084.84
  6. Step 6: Final answer
    x = 499,944.17

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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.