Home / 735,404.13-1,103,162.09-285,931.89

Finding the Fourth Proportional to 735,404.13, 1,103,162.09 and 285,931.89

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Solution

The fourth proportional to 735,404.13, 1,103,162.09 and 285,931.89 is: 428,919.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    735,404.13 : 1,103,162.09 = 285,931.89 : x
  2. Step 2: Convert to fraction form
    735,404.13/1,103,162.09 = 285,931.89/x
  3. Step 3: Cross multiply
    735,404.13x = 1,103,162.09 × 285,931.89
  4. Step 4: Simplify right side
    735,404.13x = 315,429,219,940.39
  5. Step 5: Solve for x
    x = 315,429,219,940.39/735,404.13
  6. Step 6: Final answer
    x = 428,919.57

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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.