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Finding the Fourth Proportional to 504,826.80, 696,649.84 and 278,472.30

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Solution

The fourth proportional to 504,826.80, 696,649.84 and 278,472.30 is: 384,285.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    504,826.80 : 696,649.84 = 278,472.30 : x
  2. Step 2: Convert to fraction form
    504,826.80/696,649.84 = 278,472.30/x
  3. Step 3: Cross multiply
    504,826.80x = 696,649.84 × 278,472.30
  4. Step 4: Simplify right side
    504,826.80x = 193,997,683,239.43
  5. Step 5: Solve for x
    x = 193,997,683,239.43/504,826.80
  6. Step 6: Final answer
    x = 384,285.63

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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.