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Finding the Fourth Proportional to 574,280.64, 861,612.77 and 254,389.05

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Solution

The fourth proportional to 574,280.64, 861,612.77 and 254,389.05 is: 381,668.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    574,280.64 : 861,612.77 = 254,389.05 : x
  2. Step 2: Convert to fraction form
    574,280.64/861,612.77 = 254,389.05/x
  3. Step 3: Cross multiply
    574,280.64x = 861,612.77 × 254,389.05
  4. Step 4: Simplify right side
    574,280.64x = 219,184,854,664.14
  5. Step 5: Solve for x
    x = 219,184,854,664.14/574,280.64
  6. Step 6: Final answer
    x = 381,668.54

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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.