Home / 668,039.28-921,890.84-362,114.48

Finding the Fourth Proportional to 668,039.28, 921,890.84 and 362,114.48

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Solution

The fourth proportional to 668,039.28, 921,890.84 and 362,114.48 is: 499,716.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,039.28 : 921,890.84 = 362,114.48 : x
  2. Step 2: Convert to fraction form
    668,039.28/921,890.84 = 362,114.48/x
  3. Step 3: Cross multiply
    668,039.28x = 921,890.84 × 362,114.48
  4. Step 4: Simplify right side
    668,039.28x = 333,830,022,143.36
  5. Step 5: Solve for x
    x = 333,830,022,143.36/668,039.28
  6. Step 6: Final answer
    x = 499,716.16

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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.