Home / 818,667.14-1,228,131.96-345,422.24

Finding the Fourth Proportional to 818,667.14, 1,228,131.96 and 345,422.24

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Solution

The fourth proportional to 818,667.14, 1,228,131.96 and 345,422.24 is: 518,188.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    818,667.14 : 1,228,131.96 = 345,422.24 : x
  2. Step 2: Convert to fraction form
    818,667.14/1,228,131.96 = 345,422.24/x
  3. Step 3: Cross multiply
    818,667.14x = 1,228,131.96 × 345,422.24
  4. Step 4: Simplify right side
    818,667.14x = 424,224,092,638.79
  5. Step 5: Solve for x
    x = 424,224,092,638.79/818,667.14
  6. Step 6: Final answer
    x = 518,188.74

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1.5x scale

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.