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Finding the Fourth Proportional to 636,207.42, 877,943.93 and 349,725.45

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Solution

The fourth proportional to 636,207.42, 877,943.93 and 349,725.45 is: 482,608.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,207.42 : 877,943.93 = 349,725.45 : x
  2. Step 2: Convert to fraction form
    636,207.42/877,943.93 = 349,725.45/x
  3. Step 3: Cross multiply
    636,207.42x = 877,943.93 × 349,725.45
  4. Step 4: Simplify right side
    636,207.42x = 307,039,334,245.39
  5. Step 5: Solve for x
    x = 307,039,334,245.39/636,207.42
  6. Step 6: Final answer
    x = 482,608.85

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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.