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Finding the Fourth Proportional to 636,281.88, 878,071.32 and 349,820.16

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Solution

The fourth proportional to 636,281.88, 878,071.32 and 349,820.16 is: 482,753.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,281.88 : 878,071.32 = 349,820.16 : x
  2. Step 2: Convert to fraction form
    636,281.88/878,071.32 = 349,820.16/x
  3. Step 3: Cross multiply
    636,281.88x = 878,071.32 × 349,820.16
  4. Step 4: Simplify right side
    636,281.88x = 307,167,049,653.81
  5. Step 5: Solve for x
    x = 307,167,049,653.81/636,281.88
  6. Step 6: Final answer
    x = 482,753.10

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.