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Finding the Fourth Proportional to 577,718.70, 797,452.23 and 397,028.76

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Solution

The fourth proportional to 577,718.70, 797,452.23 and 397,028.76 is: 548,037.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    577,718.70 : 797,452.23 = 397,028.76 : x
  2. Step 2: Convert to fraction form
    577,718.70/797,452.23 = 397,028.76/x
  3. Step 3: Cross multiply
    577,718.70x = 797,452.23 × 397,028.76
  4. Step 4: Simplify right side
    577,718.70x = 316,611,470,036.14
  5. Step 5: Solve for x
    x = 316,611,470,036.14/577,718.70
  6. Step 6: Final answer
    x = 548,037.43

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Double scale
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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.