Home / 820,163.70-1,230,245.55-745,368.30

Finding the Fourth Proportional to 820,163.70, 1,230,245.55 and 745,368.30

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Solution

The fourth proportional to 820,163.70, 1,230,245.55 and 745,368.30 is: 1,118,052.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    820,163.70 : 1,230,245.55 = 745,368.30 : x
  2. Step 2: Convert to fraction form
    820,163.70/1,230,245.55 = 745,368.30/x
  3. Step 3: Cross multiply
    820,163.70x = 1,230,245.55 × 745,368.30
  4. Step 4: Simplify right side
    820,163.70x = 916,986,034,186.07
  5. Step 5: Solve for x
    x = 916,986,034,186.07/820,163.70
  6. Step 6: Final answer
    x = 1,118,052.45

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Similar ratio
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1.5x scale

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.