Home / 800,490.37-1,105,005.36-542,720.37

Finding the Fourth Proportional to 800,490.37, 1,105,005.36 and 542,720.37

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Solution

The fourth proportional to 800,490.37, 1,105,005.36 and 542,720.37 is: 749,176.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    800,490.37 : 1,105,005.36 = 542,720.37 : x
  2. Step 2: Convert to fraction form
    800,490.37/1,105,005.36 = 542,720.37/x
  3. Step 3: Cross multiply
    800,490.37x = 1,105,005.36 × 542,720.37
  4. Step 4: Simplify right side
    800,490.37x = 599,708,912,306.16
  5. Step 5: Solve for x
    x = 599,708,912,306.16/800,490.37
  6. Step 6: Final answer
    x = 749,176.92

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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.