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Finding the Fourth Proportional to 586,601.75, 809,510.42 and 318,329.75

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Solution

The fourth proportional to 586,601.75, 809,510.42 and 318,329.75 is: 439,295.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    586,601.75 : 809,510.42 = 318,329.75 : x
  2. Step 2: Convert to fraction form
    586,601.75/809,510.42 = 318,329.75/x
  3. Step 3: Cross multiply
    586,601.75x = 809,510.42 × 318,329.75
  4. Step 4: Simplify right side
    586,601.75x = 257,691,249,621.00
  5. Step 5: Solve for x
    x = 257,691,249,621.00/586,601.75
  6. Step 6: Final answer
    x = 439,295.06

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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.