Home / 891,869.73-1,230,429.87-509,691.48

Finding the Fourth Proportional to 891,869.73, 1,230,429.87 and 509,691.48

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Solution

The fourth proportional to 891,869.73, 1,230,429.87 and 509,691.48 is: 703,174.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    891,869.73 : 1,230,429.87 = 509,691.48 : x
  2. Step 2: Convert to fraction form
    891,869.73/1,230,429.87 = 509,691.48/x
  3. Step 3: Cross multiply
    891,869.73x = 1,230,429.87 × 509,691.48
  4. Step 4: Simplify right side
    891,869.73x = 627,139,621,476.51
  5. Step 5: Solve for x
    x = 627,139,621,476.51/891,869.73
  6. Step 6: Final answer
    x = 703,174.02

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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.