Home / 755,105.94-1,041,811.62-428,365.20

Finding the Fourth Proportional to 755,105.94, 1,041,811.62 and 428,365.20

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Solution

The fourth proportional to 755,105.94, 1,041,811.62 and 428,365.20 is: 591,010.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    755,105.94 : 1,041,811.62 = 428,365.20 : x
  2. Step 2: Convert to fraction form
    755,105.94/1,041,811.62 = 428,365.20/x
  3. Step 3: Cross multiply
    755,105.94x = 1,041,811.62 × 428,365.20
  4. Step 4: Simplify right side
    755,105.94x = 446,275,842,963.62
  5. Step 5: Solve for x
    x = 446,275,842,963.62/755,105.94
  6. Step 6: Final answer
    x = 591,010.90

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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.