Home / 939,811.13-1,409,875.85-324,147.92

Finding the Fourth Proportional to 939,811.13, 1,409,875.85 and 324,147.92

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Solution

The fourth proportional to 939,811.13, 1,409,875.85 and 324,147.92 is: 486,276.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    939,811.13 : 1,409,875.85 = 324,147.92 : x
  2. Step 2: Convert to fraction form
    939,811.13/1,409,875.85 = 324,147.92/x
  3. Step 3: Cross multiply
    939,811.13x = 1,409,875.85 × 324,147.92
  4. Step 4: Simplify right side
    939,811.13x = 457,008,315,565.61
  5. Step 5: Solve for x
    x = 457,008,315,565.61/939,811.13
  6. Step 6: Final answer
    x = 486,276.77

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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.