Home / 1,005,729.88-1,508,274.54-331,685.20

Finding the Fourth Proportional to 1,005,729.88, 1,508,274.54 and 331,685.20

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Solution

The fourth proportional to 1,005,729.88, 1,508,274.54 and 331,685.20 is: 497,422.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,005,729.88 : 1,508,274.54 = 331,685.20 : x
  2. Step 2: Convert to fraction form
    1,005,729.88/1,508,274.54 = 331,685.20/x
  3. Step 3: Cross multiply
    1,005,729.88x = 1,508,274.54 × 331,685.20
  4. Step 4: Simplify right side
    1,005,729.88x = 500,272,342,454.81
  5. Step 5: Solve for x
    x = 500,272,342,454.81/1,005,729.88
  6. Step 6: Final answer
    x = 497,422.17

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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.