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Finding the Fourth Proportional to 503,161.80, 755,155.80 and 499,225.20

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Solution

The fourth proportional to 503,161.80, 755,155.80 and 499,225.20 is: 749,247.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    503,161.80 : 755,155.80 = 499,225.20 : x
  2. Step 2: Convert to fraction form
    503,161.80/755,155.80 = 499,225.20/x
  3. Step 3: Cross multiply
    503,161.80x = 755,155.80 × 499,225.20
  4. Step 4: Simplify right side
    503,161.80x = 376,992,805,286.16
  5. Step 5: Solve for x
    x = 376,992,805,286.16/503,161.80
  6. Step 6: Final answer
    x = 749,247.67

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1.5x scale

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.