Home / 649,043.32-900,262.09-631,780.60

Finding the Fourth Proportional to 649,043.32, 900,262.09 and 631,780.60

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Solution

The fourth proportional to 649,043.32, 900,262.09 and 631,780.60 is: 876,317.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    649,043.32 : 900,262.09 = 631,780.60 : x
  2. Step 2: Convert to fraction form
    649,043.32/900,262.09 = 631,780.60/x
  3. Step 3: Cross multiply
    649,043.32x = 900,262.09 × 631,780.60
  4. Step 4: Simplify right side
    649,043.32x = 568,768,123,377.45
  5. Step 5: Solve for x
    x = 568,768,123,377.45/649,043.32
  6. Step 6: Final answer
    x = 876,317.66

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.