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Finding the Fourth Proportional to 634,212.76, 875,240.94 and 379,514.92

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Solution

The fourth proportional to 634,212.76, 875,240.94 and 379,514.92 is: 523,746.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    634,212.76 : 875,240.94 = 379,514.92 : x
  2. Step 2: Convert to fraction form
    634,212.76/875,240.94 = 379,514.92/x
  3. Step 3: Cross multiply
    634,212.76x = 875,240.94 × 379,514.92
  4. Step 4: Simplify right side
    634,212.76x = 332,166,995,324.83
  5. Step 5: Solve for x
    x = 332,166,995,324.83/634,212.76
  6. Step 6: Final answer
    x = 523,746.94

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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.