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Finding the Fourth Proportional to 636,016.28, 877,510.86 and 381,274.52

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Solution

The fourth proportional to 636,016.28, 877,510.86 and 381,274.52 is: 526,043.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,016.28 : 877,510.86 = 381,274.52 : x
  2. Step 2: Convert to fraction form
    636,016.28/877,510.86 = 381,274.52/x
  3. Step 3: Cross multiply
    636,016.28x = 877,510.86 × 381,274.52
  4. Step 4: Simplify right side
    636,016.28x = 334,572,531,941.29
  5. Step 5: Solve for x
    x = 334,572,531,941.29/636,016.28
  6. Step 6: Final answer
    x = 526,043.97

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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.