Home / 970,561.32-1,338,992.76-648,481.80

Finding the Fourth Proportional to 970,561.32, 1,338,992.76 and 648,481.80

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Solution

The fourth proportional to 970,561.32, 1,338,992.76 and 648,481.80 is: 894,649.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    970,561.32 : 1,338,992.76 = 648,481.80 : x
  2. Step 2: Convert to fraction form
    970,561.32/1,338,992.76 = 648,481.80/x
  3. Step 3: Cross multiply
    970,561.32x = 1,338,992.76 × 648,481.80
  4. Step 4: Simplify right side
    970,561.32x = 868,312,435,191.77
  5. Step 5: Solve for x
    x = 868,312,435,191.77/970,561.32
  6. Step 6: Final answer
    x = 894,649.74

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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.