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Finding the Fourth Proportional to 551,520.83, 761,181.61 and 336,784.77

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Solution

The fourth proportional to 551,520.83, 761,181.61 and 336,784.77 is: 464,813.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    551,520.83 : 761,181.61 = 336,784.77 : x
  2. Step 2: Convert to fraction form
    551,520.83/761,181.61 = 336,784.77/x
  3. Step 3: Cross multiply
    551,520.83x = 761,181.61 × 336,784.77
  4. Step 4: Simplify right side
    551,520.83x = 256,354,373,452.08
  5. Step 5: Solve for x
    x = 256,354,373,452.08/551,520.83
  6. Step 6: Final answer
    x = 464,813.58

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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.