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Finding the Fourth Proportional to 523,941.75, 723,039.62 and 285,477.75

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Solution

The fourth proportional to 523,941.75, 723,039.62 and 285,477.75 is: 393,959.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    523,941.75 : 723,039.62 = 285,477.75 : x
  2. Step 2: Convert to fraction form
    523,941.75/723,039.62 = 285,477.75/x
  3. Step 3: Cross multiply
    523,941.75x = 723,039.62 × 285,477.75
  4. Step 4: Simplify right side
    523,941.75x = 206,411,722,451.07
  5. Step 5: Solve for x
    x = 206,411,722,451.07/523,941.75
  6. Step 6: Final answer
    x = 393,959.30

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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.