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Finding the Fourth Proportional to 630,540.45, 870,166.80 and 344,076.26

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Solution

The fourth proportional to 630,540.45, 870,166.80 and 344,076.26 is: 474,836.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,540.45 : 870,166.80 = 344,076.26 : x
  2. Step 2: Convert to fraction form
    630,540.45/870,166.80 = 344,076.26/x
  3. Step 3: Cross multiply
    630,540.45x = 870,166.80 × 344,076.26
  4. Step 4: Simplify right side
    630,540.45x = 299,403,733,769.33
  5. Step 5: Solve for x
    x = 299,403,733,769.33/630,540.45
  6. Step 6: Final answer
    x = 474,836.68

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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.