Home / 1,297,742.52-1,946,618.36-399,178.20

Finding the Fourth Proportional to 1,297,742.52, 1,946,618.36 and 399,178.20

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Solution

The fourth proportional to 1,297,742.52, 1,946,618.36 and 399,178.20 is: 598,768.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,297,742.52 : 1,946,618.36 = 399,178.20 : x
  2. Step 2: Convert to fraction form
    1,297,742.52/1,946,618.36 = 399,178.20/x
  3. Step 3: Cross multiply
    1,297,742.52x = 1,946,618.36 × 399,178.20
  4. Step 4: Simplify right side
    1,297,742.52x = 777,047,613,031.75
  5. Step 5: Solve for x
    x = 777,047,613,031.75/1,297,742.52
  6. Step 6: Final answer
    x = 598,768.71

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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.