Home / 429,822.54-643,847.76-251,789.76

Finding the Fourth Proportional to 429,822.54, 643,847.76 and 251,789.76

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Solution

The fourth proportional to 429,822.54, 643,847.76 and 251,789.76 is: 377,165.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    429,822.54 : 643,847.76 = 251,789.76 : x
  2. Step 2: Convert to fraction form
    429,822.54/643,847.76 = 251,789.76/x
  3. Step 3: Cross multiply
    429,822.54x = 643,847.76 × 251,789.76
  4. Step 4: Simplify right side
    429,822.54x = 162,114,272,966.94
  5. Step 5: Solve for x
    x = 162,114,272,966.94/429,822.54
  6. Step 6: Final answer
    x = 377,165.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.