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Finding the Fourth Proportional to 634,475.66, 875,649.57 and 379,826.78

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Solution

The fourth proportional to 634,475.66, 875,649.57 and 379,826.78 is: 524,204.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    634,475.66 : 875,649.57 = 379,826.78 : x
  2. Step 2: Convert to fraction form
    634,475.66/875,649.57 = 379,826.78/x
  3. Step 3: Cross multiply
    634,475.66x = 875,649.57 × 379,826.78
  4. Step 4: Simplify right side
    634,475.66x = 332,595,156,581.49
  5. Step 5: Solve for x
    x = 332,595,156,581.49/634,475.66
  6. Step 6: Final answer
    x = 524,204.75

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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.