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Finding the Fourth Proportional to 536,495.80, 804,743.70 and 287,663.80

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Solution

The fourth proportional to 536,495.80, 804,743.70 and 287,663.80 is: 431,495.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    536,495.80 : 804,743.70 = 287,663.80 : x
  2. Step 2: Convert to fraction form
    536,495.80/804,743.70 = 287,663.80/x
  3. Step 3: Cross multiply
    536,495.80x = 804,743.70 × 287,663.80
  4. Step 4: Simplify right side
    536,495.80x = 231,495,630,768.06
  5. Step 5: Solve for x
    x = 231,495,630,768.06/536,495.80
  6. Step 6: Final answer
    x = 431,495.70

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Similar ratio
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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.