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Finding the Fourth Proportional to 559,511.94, 772,126.62 and 304,863.15

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Solution

The fourth proportional to 559,511.94, 772,126.62 and 304,863.15 is: 420,711.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    559,511.94 : 772,126.62 = 304,863.15 : x
  2. Step 2: Convert to fraction form
    559,511.94/772,126.62 = 304,863.15/x
  3. Step 3: Cross multiply
    559,511.94x = 772,126.62 × 304,863.15
  4. Step 4: Simplify right side
    559,511.94x = 235,392,953,572.05
  5. Step 5: Solve for x
    x = 235,392,953,572.05/559,511.94
  6. Step 6: Final answer
    x = 420,711.22

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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.