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Finding the Fourth Proportional to 577,718.20, 797,451.54 and 397,028.26

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Solution

The fourth proportional to 577,718.20, 797,451.54 and 397,028.26 is: 548,036.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    577,718.20 : 797,451.54 = 397,028.26 : x
  2. Step 2: Convert to fraction form
    577,718.20/797,451.54 = 397,028.26/x
  3. Step 3: Cross multiply
    577,718.20x = 797,451.54 × 397,028.26
  4. Step 4: Simplify right side
    577,718.20x = 316,610,797,360.52
  5. Step 5: Solve for x
    x = 316,610,797,360.52/577,718.20
  6. Step 6: Final answer
    x = 548,036.74

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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.