Home / 1,092,749.93-1,638,189.95-419,314.49

Finding the Fourth Proportional to 1,092,749.93, 1,638,189.95 and 419,314.49

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Solution

The fourth proportional to 1,092,749.93, 1,638,189.95 and 419,314.49 is: 628,612.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,092,749.93 : 1,638,189.95 = 419,314.49 : x
  2. Step 2: Convert to fraction form
    1,092,749.93/1,638,189.95 = 419,314.49/x
  3. Step 3: Cross multiply
    1,092,749.93x = 1,638,189.95 × 419,314.49
  4. Step 4: Simplify right side
    1,092,749.93x = 686,916,773,119.85
  5. Step 5: Solve for x
    x = 686,916,773,119.85/1,092,749.93
  6. Step 6: Final answer
    x = 628,612.97

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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.