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Finding the Fourth Proportional to 636,036.75, 877,679.28 and 364,042.80

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Solution

The fourth proportional to 636,036.75, 877,679.28 and 364,042.80 is: 502,349.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,036.75 : 877,679.28 = 364,042.80 : x
  2. Step 2: Convert to fraction form
    636,036.75/877,679.28 = 364,042.80/x
  3. Step 3: Cross multiply
    636,036.75x = 877,679.28 × 364,042.80
  4. Step 4: Simplify right side
    636,036.75x = 319,512,822,593.18
  5. Step 5: Solve for x
    x = 319,512,822,593.18/636,036.75
  6. Step 6: Final answer
    x = 502,349.62

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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.