Home / 634,621.28-875,712.48-379,965.92

Finding the Fourth Proportional to 634,621.28, 875,712.48 and 379,965.92

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Solution

The fourth proportional to 634,621.28, 875,712.48 and 379,965.92 is: 524,314.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    634,621.28 : 875,712.48 = 379,965.92 : x
  2. Step 2: Convert to fraction form
    634,621.28/875,712.48 = 379,965.92/x
  3. Step 3: Cross multiply
    634,621.28x = 875,712.48 × 379,965.92
  4. Step 4: Simplify right side
    634,621.28x = 332,740,898,118.68
  5. Step 5: Solve for x
    x = 332,740,898,118.68/634,621.28
  6. Step 6: Final answer
    x = 524,314.12

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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.