Home / 916,829.55-1,375,375.34-285,792.57

Finding the Fourth Proportional to 916,829.55, 1,375,375.34 and 285,792.57

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Solution

The fourth proportional to 916,829.55, 1,375,375.34 and 285,792.57 is: 428,729.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    916,829.55 : 1,375,375.34 = 285,792.57 : x
  2. Step 2: Convert to fraction form
    916,829.55/1,375,375.34 = 285,792.57/x
  3. Step 3: Cross multiply
    916,829.55x = 1,375,375.34 × 285,792.57
  4. Step 4: Simplify right side
    916,829.55x = 393,072,053,847.71
  5. Step 5: Solve for x
    x = 393,072,053,847.71/916,829.55
  6. Step 6: Final answer
    x = 428,729.70

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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.