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Finding the Fourth Proportional to 630,992.46, 870,788.82 and 359,099.46

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Solution

The fourth proportional to 630,992.46, 870,788.82 and 359,099.46 is: 495,568.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,992.46 : 870,788.82 = 359,099.46 : x
  2. Step 2: Convert to fraction form
    630,992.46/870,788.82 = 359,099.46/x
  3. Step 3: Cross multiply
    630,992.46x = 870,788.82 × 359,099.46
  4. Step 4: Simplify right side
    630,992.46x = 312,699,795,036.04
  5. Step 5: Solve for x
    x = 312,699,795,036.04/630,992.46
  6. Step 6: Final answer
    x = 495,568.20

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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.