Home / 513,077.58-769,629.60-243,142.38

Finding the Fourth Proportional to 513,077.58, 769,629.60 and 243,142.38

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Solution

The fourth proportional to 513,077.58, 769,629.60 and 243,142.38 is: 364,719.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    513,077.58 : 769,629.60 = 243,142.38 : x
  2. Step 2: Convert to fraction form
    513,077.58/769,629.60 = 243,142.38/x
  3. Step 3: Cross multiply
    513,077.58x = 769,629.60 × 243,142.38
  4. Step 4: Simplify right side
    513,077.58x = 187,129,572,662.45
  5. Step 5: Solve for x
    x = 187,129,572,662.45/513,077.58
  6. Step 6: Final answer
    x = 364,719.84

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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.