Home / 939,736.80-1,406,725.20-517,720.80

Finding the Fourth Proportional to 939,736.80, 1,406,725.20 and 517,720.80

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Solution

The fourth proportional to 939,736.80, 1,406,725.20 and 517,720.80 is: 774,994.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    939,736.80 : 1,406,725.20 = 517,720.80 : x
  2. Step 2: Convert to fraction form
    939,736.80/1,406,725.20 = 517,720.80/x
  3. Step 3: Cross multiply
    939,736.80x = 1,406,725.20 × 517,720.80
  4. Step 4: Simplify right side
    939,736.80x = 728,290,895,924.16
  5. Step 5: Solve for x
    x = 728,290,895,924.16/939,736.80
  6. Step 6: Final answer
    x = 774,994.55

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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.