Home / 750,100.50-1,035,130.77-405,928.98

Finding the Fourth Proportional to 750,100.50, 1,035,130.77 and 405,928.98

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Solution

The fourth proportional to 750,100.50, 1,035,130.77 and 405,928.98 is: 560,177.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    750,100.50 : 1,035,130.77 = 405,928.98 : x
  2. Step 2: Convert to fraction form
    750,100.50/1,035,130.77 = 405,928.98/x
  3. Step 3: Cross multiply
    750,100.50x = 1,035,130.77 × 405,928.98
  4. Step 4: Simplify right side
    750,100.50x = 420,189,577,632.72
  5. Step 5: Solve for x
    x = 420,189,577,632.72/750,100.50
  6. Step 6: Final answer
    x = 560,177.71

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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.