Home / 1,091,317.20-1,636,975.80-613,020.30

Finding the Fourth Proportional to 1,091,317.20, 1,636,975.80 and 613,020.30

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Solution

The fourth proportional to 1,091,317.20, 1,636,975.80 and 613,020.30 is: 919,530.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,091,317.20 : 1,636,975.80 = 613,020.30 : x
  2. Step 2: Convert to fraction form
    1,091,317.20/1,636,975.80 = 613,020.30/x
  3. Step 3: Cross multiply
    1,091,317.20x = 1,636,975.80 × 613,020.30
  4. Step 4: Simplify right side
    1,091,317.20x = 1,003,499,396,008.74
  5. Step 5: Solve for x
    x = 1,003,499,396,008.74/1,091,317.20
  6. Step 6: Final answer
    x = 919,530.45

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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.