Home / 740,003.70-1,109,519.55-290,453.70

Finding the Fourth Proportional to 740,003.70, 1,109,519.55 and 290,453.70

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Solution

The fourth proportional to 740,003.70, 1,109,519.55 and 290,453.70 is: 435,489.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    740,003.70 : 1,109,519.55 = 290,453.70 : x
  2. Step 2: Convert to fraction form
    740,003.70/1,109,519.55 = 290,453.70/x
  3. Step 3: Cross multiply
    740,003.70x = 1,109,519.55 × 290,453.70
  4. Step 4: Simplify right side
    740,003.70x = 322,264,058,519.84
  5. Step 5: Solve for x
    x = 322,264,058,519.84/740,003.70
  6. Step 6: Final answer
    x = 435,489.79

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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.