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Finding the Fourth Proportional to 586,590.54, 809,495.01 and 318,318.54

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Solution

The fourth proportional to 586,590.54, 809,495.01 and 318,318.54 is: 439,279.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    586,590.54 : 809,495.01 = 318,318.54 : x
  2. Step 2: Convert to fraction form
    586,590.54/809,495.01 = 318,318.54/x
  3. Step 3: Cross multiply
    586,590.54x = 809,495.01 × 318,318.54
  4. Step 4: Simplify right side
    586,590.54x = 257,677,269,720.49
  5. Step 5: Solve for x
    x = 257,677,269,720.49/586,590.54
  6. Step 6: Final answer
    x = 439,279.62

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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.