Home / 786,131.76-1,084,865.48-446,618.64

Finding the Fourth Proportional to 786,131.76, 1,084,865.48 and 446,618.64

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Solution

The fourth proportional to 786,131.76, 1,084,865.48 and 446,618.64 is: 616,335.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    786,131.76 : 1,084,865.48 = 446,618.64 : x
  2. Step 2: Convert to fraction form
    786,131.76/1,084,865.48 = 446,618.64/x
  3. Step 3: Cross multiply
    786,131.76x = 1,084,865.48 × 446,618.64
  4. Step 4: Simplify right side
    786,131.76x = 484,521,145,260.55
  5. Step 5: Solve for x
    x = 484,521,145,260.55/786,131.76
  6. Step 6: Final answer
    x = 616,335.80

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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.