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Finding the Fourth Proportional to 563,488.68, 777,633.84 and 308,837.64

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Solution

The fourth proportional to 563,488.68, 777,633.84 and 308,837.64 is: 426,206.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    563,488.68 : 777,633.84 = 308,837.64 : x
  2. Step 2: Convert to fraction form
    563,488.68/777,633.84 = 308,837.64/x
  3. Step 3: Cross multiply
    563,488.68x = 777,633.84 × 308,837.64
  4. Step 4: Simplify right side
    563,488.68x = 240,162,599,929.74
  5. Step 5: Solve for x
    x = 240,162,599,929.74/563,488.68
  6. Step 6: Final answer
    x = 426,206.61

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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.