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Finding the Fourth Proportional to 577,695.78, 797,220.23 and 323,047.58

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Solution

The fourth proportional to 577,695.78, 797,220.23 and 323,047.58 is: 445,805.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    577,695.78 : 797,220.23 = 323,047.58 : x
  2. Step 2: Convert to fraction form
    577,695.78/797,220.23 = 323,047.58/x
  3. Step 3: Cross multiply
    577,695.78x = 797,220.23 × 323,047.58
  4. Step 4: Simplify right side
    577,695.78x = 257,540,060,427.20
  5. Step 5: Solve for x
    x = 257,540,060,427.20/577,695.78
  6. Step 6: Final answer
    x = 445,805.68

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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.