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Finding the Fourth Proportional to 636,059.12, 877,724.51 and 349,579.44

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Solution

The fourth proportional to 636,059.12, 877,724.51 and 349,579.44 is: 482,399.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,059.12 : 877,724.51 = 349,579.44 : x
  2. Step 2: Convert to fraction form
    636,059.12/877,724.51 = 349,579.44/x
  3. Step 3: Cross multiply
    636,059.12x = 877,724.51 × 349,579.44
  4. Step 4: Simplify right side
    636,059.12x = 306,834,440,932.18
  5. Step 5: Solve for x
    x = 306,834,440,932.18/636,059.12
  6. Step 6: Final answer
    x = 482,399.25

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1.5x scale

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.