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Finding the Fourth Proportional to 555,961.88, 767,309.75 and 352,031.76

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Solution

The fourth proportional to 555,961.88, 767,309.75 and 352,031.76 is: 485,855.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,961.88 : 767,309.75 = 352,031.76 : x
  2. Step 2: Convert to fraction form
    555,961.88/767,309.75 = 352,031.76/x
  3. Step 3: Cross multiply
    555,961.88x = 767,309.75 × 352,031.76
  4. Step 4: Simplify right side
    555,961.88x = 270,117,399,997.50
  5. Step 5: Solve for x
    x = 270,117,399,997.50/555,961.88
  6. Step 6: Final answer
    x = 485,855.98

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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.