Home / 700,318.53-1,050,805.85-345,138.80

Finding the Fourth Proportional to 700,318.53, 1,050,805.85 and 345,138.80

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Solution

The fourth proportional to 700,318.53, 1,050,805.85 and 345,138.80 is: 517,869.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    700,318.53 : 1,050,805.85 = 345,138.80 : x
  2. Step 2: Convert to fraction form
    700,318.53/1,050,805.85 = 345,138.80/x
  3. Step 3: Cross multiply
    700,318.53x = 1,050,805.85 × 345,138.80
  4. Step 4: Simplify right side
    700,318.53x = 362,673,863,122.26
  5. Step 5: Solve for x
    x = 362,673,863,122.26/700,318.53
  6. Step 6: Final answer
    x = 517,869.87

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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.