Home / 749,133-1,123,811.28-275,781.96

Finding the Fourth Proportional to 749,133, 1,123,811.28 and 275,781.96

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Solution

The fourth proportional to 749,133, 1,123,811.28 and 275,781.96 is: 413,714.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    749,133 : 1,123,811.28 = 275,781.96 : x
  2. Step 2: Convert to fraction form
    749,133/1,123,811.28 = 275,781.96/x
  3. Step 3: Cross multiply
    749,133x = 1,123,811.28 × 275,781.96
  4. Step 4: Simplify right side
    749,133x = 309,926,877,468.51
  5. Step 5: Solve for x
    x = 309,926,877,468.51/749,133
  6. Step 6: Final answer
    x = 413,714.09

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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.