Home / 750,554.15-1,035,687.39-428,202.20

Finding the Fourth Proportional to 750,554.15, 1,035,687.39 and 428,202.20

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Solution

The fourth proportional to 750,554.15, 1,035,687.39 and 428,202.20 is: 590,874.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    750,554.15 : 1,035,687.39 = 428,202.20 : x
  2. Step 2: Convert to fraction form
    750,554.15/1,035,687.39 = 428,202.20/x
  3. Step 3: Cross multiply
    750,554.15x = 1,035,687.39 × 428,202.20
  4. Step 4: Simplify right side
    750,554.15x = 443,483,613,731.82
  5. Step 5: Solve for x
    x = 443,483,613,731.82/750,554.15
  6. Step 6: Final answer
    x = 590,874.91

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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.