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Finding the Fourth Proportional to 502,624.48, 753,936.24 and 128,646.88

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Solution

The fourth proportional to 502,624.48, 753,936.24 and 128,646.88 is: 192,970.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    502,624.48 : 753,936.24 = 128,646.88 : x
  2. Step 2: Convert to fraction form
    502,624.48/753,936.24 = 128,646.88/x
  3. Step 3: Cross multiply
    502,624.48x = 753,936.24 × 128,646.88
  4. Step 4: Simplify right side
    502,624.48x = 96,991,544,994.93
  5. Step 5: Solve for x
    x = 96,991,544,994.93/502,624.48
  6. Step 6: Final answer
    x = 192,970.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.