Home / 1,286,273.28-1,929,490.52-433,274.84

Finding the Fourth Proportional to 1,286,273.28, 1,929,490.52 and 433,274.84

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Solution

The fourth proportional to 1,286,273.28, 1,929,490.52 and 433,274.84 is: 649,939.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,286,273.28 : 1,929,490.52 = 433,274.84 : x
  2. Step 2: Convert to fraction form
    1,286,273.28/1,929,490.52 = 433,274.84/x
  3. Step 3: Cross multiply
    1,286,273.28x = 1,929,490.52 × 433,274.84
  4. Step 4: Simplify right side
    1,286,273.28x = 835,999,684,520.69
  5. Step 5: Solve for x
    x = 835,999,684,520.69/1,286,273.28
  6. Step 6: Final answer
    x = 649,939.40

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.