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Finding the Fourth Proportional to 577,719.70, 797,453.61 and 397,029.76

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Solution

The fourth proportional to 577,719.70, 797,453.61 and 397,029.76 is: 548,038.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    577,719.70 : 797,453.61 = 397,029.76 : x
  2. Step 2: Convert to fraction form
    577,719.70/797,453.61 = 397,029.76/x
  3. Step 3: Cross multiply
    577,719.70x = 797,453.61 × 397,029.76
  4. Step 4: Simplify right side
    577,719.70x = 316,612,815,389.43
  5. Step 5: Solve for x
    x = 316,612,815,389.43/577,719.70
  6. Step 6: Final answer
    x = 548,038.81

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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.