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Finding the Fourth Proportional to 586,666, 809,599.08 and 318,394

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Solution

The fourth proportional to 586,666, 809,599.08 and 318,394 is: 439,383.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    586,666 : 809,599.08 = 318,394 : x
  2. Step 2: Convert to fraction form
    586,666/809,599.08 = 318,394/x
  3. Step 3: Cross multiply
    586,666x = 809,599.08 × 318,394
  4. Step 4: Simplify right side
    586,666x = 257,771,489,477.52
  5. Step 5: Solve for x
    x = 257,771,489,477.52/586,666
  6. Step 6: Final answer
    x = 439,383.72

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.