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Finding the Fourth Proportional to 586,583.07, 809,484.63 and 318,311.07

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Solution

The fourth proportional to 586,583.07, 809,484.63 and 318,311.07 is: 439,269.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    586,583.07 : 809,484.63 = 318,311.07 : x
  2. Step 2: Convert to fraction form
    586,583.07/809,484.63 = 318,311.07/x
  3. Step 3: Cross multiply
    586,583.07x = 809,484.63 × 318,311.07
  4. Step 4: Simplify right side
    586,583.07x = 257,667,918,723.85
  5. Step 5: Solve for x
    x = 257,667,918,723.85/586,583.07
  6. Step 6: Final answer
    x = 439,269.27

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1.5x scale

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.