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Finding the Fourth Proportional to 577,819.90, 797,386.89 and 323,170.90

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Solution

The fourth proportional to 577,819.90, 797,386.89 and 323,170.90 is: 445,973.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    577,819.90 : 797,386.89 = 323,170.90 : x
  2. Step 2: Convert to fraction form
    577,819.90/797,386.89 = 323,170.90/x
  3. Step 3: Cross multiply
    577,819.90x = 797,386.89 × 323,170.90
  4. Step 4: Simplify right side
    577,819.90x = 257,692,238,889.50
  5. Step 5: Solve for x
    x = 257,692,238,889.50/577,819.90
  6. Step 6: Final answer
    x = 445,973.28

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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.