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Finding the Fourth Proportional to 538,953.10, 808,429.65 and 512,709.10

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Solution

The fourth proportional to 538,953.10, 808,429.65 and 512,709.10 is: 769,063.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    538,953.10 : 808,429.65 = 512,709.10 : x
  2. Step 2: Convert to fraction form
    538,953.10/808,429.65 = 512,709.10/x
  3. Step 3: Cross multiply
    538,953.10x = 808,429.65 × 512,709.10
  4. Step 4: Simplify right side
    538,953.10x = 414,489,238,264.82
  5. Step 5: Solve for x
    x = 414,489,238,264.82/538,953.10
  6. Step 6: Final answer
    x = 769,063.65

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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.