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Finding the Fourth Proportional to 636,049.88, 877,730.28 and 364,108.76

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Solution

The fourth proportional to 636,049.88, 877,730.28 and 364,108.76 is: 502,459.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,049.88 : 877,730.28 = 364,108.76 : x
  2. Step 2: Convert to fraction form
    636,049.88/877,730.28 = 364,108.76/x
  3. Step 3: Cross multiply
    636,049.88x = 877,730.28 × 364,108.76
  4. Step 4: Simplify right side
    636,049.88x = 319,589,283,865.25
  5. Step 5: Solve for x
    x = 319,589,283,865.25/636,049.88
  6. Step 6: Final answer
    x = 502,459.47

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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.