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Finding the Fourth Proportional to 479,849.64, 661,451.52 and 344,036.92

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Solution

The fourth proportional to 479,849.64, 661,451.52 and 344,036.92 is: 474,239.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,849.64 : 661,451.52 = 344,036.92 : x
  2. Step 2: Convert to fraction form
    479,849.64/661,451.52 = 344,036.92/x
  3. Step 3: Cross multiply
    479,849.64x = 661,451.52 × 344,036.92
  4. Step 4: Simplify right side
    479,849.64x = 227,563,743,670.12
  5. Step 5: Solve for x
    x = 227,563,743,670.12/479,849.64
  6. Step 6: Final answer
    x = 474,239.69

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1.5x scale

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.