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Finding the Fourth Proportional to 630,538.45, 870,164.06 and 344,074.26

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Solution

The fourth proportional to 630,538.45, 870,164.06 and 344,074.26 is: 474,833.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,538.45 : 870,164.06 = 344,074.26 : x
  2. Step 2: Convert to fraction form
    630,538.45/870,164.06 = 344,074.26/x
  3. Step 3: Cross multiply
    630,538.45x = 870,164.06 × 344,074.26
  4. Step 4: Simplify right side
    630,538.45x = 299,401,055,023.10
  5. Step 5: Solve for x
    x = 299,401,055,023.10/630,538.45
  6. Step 6: Final answer
    x = 474,833.94

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.