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Finding the Fourth Proportional to 550,186.30, 770,785.70 and 550,186.30

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Solution

The fourth proportional to 550,186.30, 770,785.70 and 550,186.30 is: 770,785.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    550,186.30 : 770,785.70 = 550,186.30 : x
  2. Step 2: Convert to fraction form
    550,186.30/770,785.70 = 550,186.30/x
  3. Step 3: Cross multiply
    550,186.30x = 770,785.70 × 550,186.30
  4. Step 4: Simplify right side
    550,186.30x = 424,075,732,375.91
  5. Step 5: Solve for x
    x = 424,075,732,375.91/550,186.30
  6. Step 6: Final answer
    x = 770,785.70

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.