Home / 740,190.96-1,021,463.26-400,659.21

Finding the Fourth Proportional to 740,190.96, 1,021,463.26 and 400,659.21

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Solution

The fourth proportional to 740,190.96, 1,021,463.26 and 400,659.21 is: 552,909.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    740,190.96 : 1,021,463.26 = 400,659.21 : x
  2. Step 2: Convert to fraction form
    740,190.96/1,021,463.26 = 400,659.21/x
  3. Step 3: Cross multiply
    740,190.96x = 1,021,463.26 × 400,659.21
  4. Step 4: Simplify right side
    740,190.96x = 409,258,661,793.98
  5. Step 5: Solve for x
    x = 409,258,661,793.98/740,190.96
  6. Step 6: Final answer
    x = 552,909.57

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1.5x scale

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.