Home / 765,388.92-1,056,220.38-443,112.60

Finding the Fourth Proportional to 765,388.92, 1,056,220.38 and 443,112.60

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Solution

The fourth proportional to 765,388.92, 1,056,220.38 and 443,112.60 is: 611,485.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    765,388.92 : 1,056,220.38 = 443,112.60 : x
  2. Step 2: Convert to fraction form
    765,388.92/1,056,220.38 = 443,112.60/x
  3. Step 3: Cross multiply
    765,388.92x = 1,056,220.38 × 443,112.60
  4. Step 4: Simplify right side
    765,388.92x = 468,024,558,754.79
  5. Step 5: Solve for x
    x = 468,024,558,754.79/765,388.92
  6. Step 6: Final answer
    x = 611,485.93

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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.