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Finding the Fourth Proportional to 508,843.58, 702,134.61 and 304,848.86

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Solution

The fourth proportional to 508,843.58, 702,134.61 and 304,848.86 is: 420,649.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    508,843.58 : 702,134.61 = 304,848.86 : x
  2. Step 2: Convert to fraction form
    508,843.58/702,134.61 = 304,848.86/x
  3. Step 3: Cross multiply
    508,843.58x = 702,134.61 × 304,848.86
  4. Step 4: Simplify right side
    508,843.58x = 214,044,935,425.05
  5. Step 5: Solve for x
    x = 214,044,935,425.05/508,843.58
  6. Step 6: Final answer
    x = 420,649.77

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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.