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Finding the Fourth Proportional to 586,667.37, 809,601.30 and 318,395.37

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Solution

The fourth proportional to 586,667.37, 809,601.30 and 318,395.37 is: 439,385.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    586,667.37 : 809,601.30 = 318,395.37 : x
  2. Step 2: Convert to fraction form
    586,667.37/809,601.30 = 318,395.37/x
  3. Step 3: Cross multiply
    586,667.37x = 809,601.30 × 318,395.37
  4. Step 4: Simplify right side
    586,667.37x = 257,773,305,465.98
  5. Step 5: Solve for x
    x = 257,773,305,465.98/586,667.37
  6. Step 6: Final answer
    x = 439,385.79

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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.