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Finding the Fourth Proportional to 841,846.88, 1,263,084.03 and 505,129.20

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Solution

The fourth proportional to 841,846.88, 1,263,084.03 and 505,129.20 is: 757,882.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    841,846.88 : 1,263,084.03 = 505,129.20 : x
  2. Step 2: Convert to fraction form
    841,846.88/1,263,084.03 = 505,129.20/x
  3. Step 3: Cross multiply
    841,846.88x = 1,263,084.03 × 505,129.20
  4. Step 4: Simplify right side
    841,846.88x = 638,020,625,606.68
  5. Step 5: Solve for x
    x = 638,020,625,606.68/841,846.88
  6. Step 6: Final answer
    x = 757,882.04

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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.