Home / 668,053.70-1,001,380.71-431,896.58

Finding the Fourth Proportional to 668,053.70, 1,001,380.71 and 431,896.58

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Solution

The fourth proportional to 668,053.70, 1,001,380.71 and 431,896.58 is: 647,392.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,053.70 : 1,001,380.71 = 431,896.58 : x
  2. Step 2: Convert to fraction form
    668,053.70/1,001,380.71 = 431,896.58/x
  3. Step 3: Cross multiply
    668,053.70x = 1,001,380.71 × 431,896.58
  4. Step 4: Simplify right side
    668,053.70x = 432,492,903,926.97
  5. Step 5: Solve for x
    x = 432,492,903,926.97/668,053.70
  6. Step 6: Final answer
    x = 647,392.42

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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.