Home / 640,196.07-883,488.40-353,734.62

Finding the Fourth Proportional to 640,196.07, 883,488.40 and 353,734.62

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Solution

The fourth proportional to 640,196.07, 883,488.40 and 353,734.62 is: 488,163.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    640,196.07 : 883,488.40 = 353,734.62 : x
  2. Step 2: Convert to fraction form
    640,196.07/883,488.40 = 353,734.62/x
  3. Step 3: Cross multiply
    640,196.07x = 883,488.40 × 353,734.62
  4. Step 4: Simplify right side
    640,196.07x = 312,520,433,448.41
  5. Step 5: Solve for x
    x = 312,520,433,448.41/640,196.07
  6. Step 6: Final answer
    x = 488,163.62

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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.