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Finding the Fourth Proportional to 630,540.70, 870,167.15 and 344,076.51

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Solution

The fourth proportional to 630,540.70, 870,167.15 and 344,076.51 is: 474,837.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,540.70 : 870,167.15 = 344,076.51 : x
  2. Step 2: Convert to fraction form
    630,540.70/870,167.15 = 344,076.51/x
  3. Step 3: Cross multiply
    630,540.70x = 870,167.15 × 344,076.51
  4. Step 4: Simplify right side
    630,540.70x = 299,404,076,088.65
  5. Step 5: Solve for x
    x = 299,404,076,088.65/630,540.70
  6. Step 6: Final answer
    x = 474,837.03

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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.