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Finding the Fourth Proportional to 668,076.66, 921,947.03 and 362,152.10

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Solution

The fourth proportional to 668,076.66, 921,947.03 and 362,152.10 is: 499,770.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,076.66 : 921,947.03 = 362,152.10 : x
  2. Step 2: Convert to fraction form
    668,076.66/921,947.03 = 362,152.10/x
  3. Step 3: Cross multiply
    668,076.66x = 921,947.03 × 362,152.10
  4. Step 4: Simplify right side
    668,076.66x = 333,885,048,887.64
  5. Step 5: Solve for x
    x = 333,885,048,887.64/668,076.66
  6. Step 6: Final answer
    x = 499,770.56

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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.