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Finding the Fourth Proportional to 630,892.29, 870,630.51 and 404,537.25

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Solution

The fourth proportional to 630,892.29, 870,630.51 and 404,537.25 is: 558,260.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,892.29 : 870,630.51 = 404,537.25 : x
  2. Step 2: Convert to fraction form
    630,892.29/870,630.51 = 404,537.25/x
  3. Step 3: Cross multiply
    630,892.29x = 870,630.51 × 404,537.25
  4. Step 4: Simplify right side
    630,892.29x = 352,202,472,281.50
  5. Step 5: Solve for x
    x = 352,202,472,281.50/630,892.29
  6. Step 6: Final answer
    x = 558,260.86

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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.