Home / 717,213.80-1,075,820.70-663,146.60

Finding the Fourth Proportional to 717,213.80, 1,075,820.70 and 663,146.60

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Solution

The fourth proportional to 717,213.80, 1,075,820.70 and 663,146.60 is: 994,719.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    717,213.80 : 1,075,820.70 = 663,146.60 : x
  2. Step 2: Convert to fraction form
    717,213.80/1,075,820.70 = 663,146.60/x
  3. Step 3: Cross multiply
    717,213.80x = 1,075,820.70 × 663,146.60
  4. Step 4: Simplify right side
    717,213.80x = 713,426,839,414.62
  5. Step 5: Solve for x
    x = 713,426,839,414.62/717,213.80
  6. Step 6: Final answer
    x = 994,719.90

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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.