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Finding the Fourth Proportional to 536,124.55, 804,519.20 and 311,590.72

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Solution

The fourth proportional to 536,124.55, 804,519.20 and 311,590.72 is: 467,579.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    536,124.55 : 804,519.20 = 311,590.72 : x
  2. Step 2: Convert to fraction form
    536,124.55/804,519.20 = 311,590.72/x
  3. Step 3: Cross multiply
    536,124.55x = 804,519.20 × 311,590.72
  4. Step 4: Simplify right side
    536,124.55x = 250,680,716,781.82
  5. Step 5: Solve for x
    x = 250,680,716,781.82/536,124.55
  6. Step 6: Final answer
    x = 467,579.25

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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.