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Finding the Fourth Proportional to 630,502.56, 870,093.60 and 404,148.60

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Solution

The fourth proportional to 630,502.56, 870,093.60 and 404,148.60 is: 557,725.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,502.56 : 870,093.60 = 404,148.60 : x
  2. Step 2: Convert to fraction form
    630,502.56/870,093.60 = 404,148.60/x
  3. Step 3: Cross multiply
    630,502.56x = 870,093.60 × 404,148.60
  4. Step 4: Simplify right side
    630,502.56x = 351,647,110,308.96
  5. Step 5: Solve for x
    x = 351,647,110,308.96/630,502.56
  6. Step 6: Final answer
    x = 557,725.11

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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.