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Finding the Fourth Proportional to 636,978.54, 950,364.74 and 508,295.46

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Solution

The fourth proportional to 636,978.54, 950,364.74 and 508,295.46 is: 758,371.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,978.54 : 950,364.74 = 508,295.46 : x
  2. Step 2: Convert to fraction form
    636,978.54/950,364.74 = 508,295.46/x
  3. Step 3: Cross multiply
    636,978.54x = 950,364.74 × 508,295.46
  4. Step 4: Simplify right side
    636,978.54x = 483,066,080,144.60
  5. Step 5: Solve for x
    x = 483,066,080,144.60/636,978.54
  6. Step 6: Final answer
    x = 758,371.04

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.