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Finding the Fourth Proportional to 630,536.56, 870,161.45 and 344,072.36

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Solution

The fourth proportional to 630,536.56, 870,161.45 and 344,072.36 is: 474,831.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,536.56 : 870,161.45 = 344,072.36 : x
  2. Step 2: Convert to fraction form
    630,536.56/870,161.45 = 344,072.36/x
  3. Step 3: Cross multiply
    630,536.56x = 870,161.45 × 344,072.36
  4. Step 4: Simplify right side
    630,536.56x = 299,398,504,137.56
  5. Step 5: Solve for x
    x = 299,398,504,137.56/630,536.56
  6. Step 6: Final answer
    x = 474,831.32

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1.5x scale

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.