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Finding the Fourth Proportional to 799,880, 1,200,262.86 and 479,243.94

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Solution

The fourth proportional to 799,880, 1,200,262.86 and 479,243.94 is: 719,131.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    799,880 : 1,200,262.86 = 479,243.94 : x
  2. Step 2: Convert to fraction form
    799,880/1,200,262.86 = 479,243.94/x
  3. Step 3: Cross multiply
    799,880x = 1,200,262.86 × 479,243.94
  4. Step 4: Simplify right side
    799,880x = 575,218,702,062.07
  5. Step 5: Solve for x
    x = 575,218,702,062.07/799,880
  6. Step 6: Final answer
    x = 719,131.25

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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.