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Finding the Fourth Proportional to 576,384.69, 795,478.34 and 479,417.47

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Solution

The fourth proportional to 576,384.69, 795,478.34 and 479,417.47 is: 661,652.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    576,384.69 : 795,478.34 = 479,417.47 : x
  2. Step 2: Convert to fraction form
    576,384.69/795,478.34 = 479,417.47/x
  3. Step 3: Cross multiply
    576,384.69x = 795,478.34 × 479,417.47
  4. Step 4: Simplify right side
    576,384.69x = 381,366,212,324.44
  5. Step 5: Solve for x
    x = 381,366,212,324.44/576,384.69
  6. Step 6: Final answer
    x = 661,652.22

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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.