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Finding the Fourth Proportional to 579,880.08, 869,470.47 and 259,974

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Solution

The fourth proportional to 579,880.08, 869,470.47 and 259,974 is: 389,804.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    579,880.08 : 869,470.47 = 259,974 : x
  2. Step 2: Convert to fraction form
    579,880.08/869,470.47 = 259,974/x
  3. Step 3: Cross multiply
    579,880.08x = 869,470.47 × 259,974
  4. Step 4: Simplify right side
    579,880.08x = 226,039,715,967.78
  5. Step 5: Solve for x
    x = 226,039,715,967.78/579,880.08
  6. Step 6: Final answer
    x = 389,804.24

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.