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Finding the Fourth Proportional to 667,406.52, 921,043.98 and 365,600.52

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Solution

The fourth proportional to 667,406.52, 921,043.98 and 365,600.52 is: 504,541.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    667,406.52 : 921,043.98 = 365,600.52 : x
  2. Step 2: Convert to fraction form
    667,406.52/921,043.98 = 365,600.52/x
  3. Step 3: Cross multiply
    667,406.52x = 921,043.98 × 365,600.52
  4. Step 4: Simplify right side
    667,406.52x = 336,734,158,030.87
  5. Step 5: Solve for x
    x = 336,734,158,030.87/667,406.52
  6. Step 6: Final answer
    x = 504,541.31

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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.