Home / 578,161.08-867,611.79-312,106.86

Finding the Fourth Proportional to 578,161.08, 867,611.79 and 312,106.86

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Solution

The fourth proportional to 578,161.08, 867,611.79 and 312,106.86 is: 468,360.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,161.08 : 867,611.79 = 312,106.86 : x
  2. Step 2: Convert to fraction form
    578,161.08/867,611.79 = 312,106.86/x
  3. Step 3: Cross multiply
    578,161.08x = 867,611.79 × 312,106.86
  4. Step 4: Simplify right side
    578,161.08x = 270,787,591,475.88
  5. Step 5: Solve for x
    x = 270,787,591,475.88/578,161.08
  6. Step 6: Final answer
    x = 468,360.12

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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.