Home / 749,581.83-1,034,419.68-405,418.10

Finding the Fourth Proportional to 749,581.83, 1,034,419.68 and 405,418.10

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Solution

The fourth proportional to 749,581.83, 1,034,419.68 and 405,418.10 is: 559,475.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    749,581.83 : 1,034,419.68 = 405,418.10 : x
  2. Step 2: Convert to fraction form
    749,581.83/1,034,419.68 = 405,418.10/x
  3. Step 3: Cross multiply
    749,581.83x = 1,034,419.68 × 405,418.10
  4. Step 4: Simplify right side
    749,581.83x = 419,372,456,096.11
  5. Step 5: Solve for x
    x = 419,372,456,096.11/749,581.83
  6. Step 6: Final answer
    x = 559,475.22

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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.