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Finding the Fourth Proportional to 479,590.90, 661,835.55 and 264,731.08

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Solution

The fourth proportional to 479,590.90, 661,835.55 and 264,731.08 is: 365,328.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,590.90 : 661,835.55 = 264,731.08 : x
  2. Step 2: Convert to fraction form
    479,590.90/661,835.55 = 264,731.08/x
  3. Step 3: Cross multiply
    479,590.90x = 661,835.55 × 264,731.08
  4. Step 4: Simplify right side
    479,590.90x = 175,208,439,933.89
  5. Step 5: Solve for x
    x = 175,208,439,933.89/479,590.90
  6. Step 6: Final answer
    x = 365,328.95

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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.