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Finding the Fourth Proportional to 892,065.06, 1,338,360.03 and 359,311.86

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Solution

The fourth proportional to 892,065.06, 1,338,360.03 and 359,311.86 is: 539,073.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    892,065.06 : 1,338,360.03 = 359,311.86 : x
  2. Step 2: Convert to fraction form
    892,065.06/1,338,360.03 = 359,311.86/x
  3. Step 3: Cross multiply
    892,065.06x = 1,338,360.03 × 359,311.86
  4. Step 4: Simplify right side
    892,065.06x = 480,888,631,728.96
  5. Step 5: Solve for x
    x = 480,888,631,728.96/892,065.06
  6. Step 6: Final answer
    x = 539,073.50

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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.