Home / 668,837.20-1,003,255.80-314,543.20

Finding the Fourth Proportional to 668,837.20, 1,003,255.80 and 314,543.20

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Solution

The fourth proportional to 668,837.20, 1,003,255.80 and 314,543.20 is: 471,814.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,837.20 : 1,003,255.80 = 314,543.20 : x
  2. Step 2: Convert to fraction form
    668,837.20/1,003,255.80 = 314,543.20/x
  3. Step 3: Cross multiply
    668,837.20x = 1,003,255.80 × 314,543.20
  4. Step 4: Simplify right side
    668,837.20x = 315,567,289,750.56
  5. Step 5: Solve for x
    x = 315,567,289,750.56/668,837.20
  6. Step 6: Final answer
    x = 471,814.80

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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.