Home / 785,513.56-1,084,015.92-445,989.04

Finding the Fourth Proportional to 785,513.56, 1,084,015.92 and 445,989.04

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Solution

The fourth proportional to 785,513.56, 1,084,015.92 and 445,989.04 is: 615,468.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    785,513.56 : 1,084,015.92 = 445,989.04 : x
  2. Step 2: Convert to fraction form
    785,513.56/1,084,015.92 = 445,989.04/x
  3. Step 3: Cross multiply
    785,513.56x = 1,084,015.92 × 445,989.04
  4. Step 4: Simplify right side
    785,513.56x = 483,459,219,505.52
  5. Step 5: Solve for x
    x = 483,459,219,505.52/785,513.56
  6. Step 6: Final answer
    x = 615,468.97

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1.5x scale

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.