Home / 770,855.91-1,063,078.23-661,926.03

Finding the Fourth Proportional to 770,855.91, 1,063,078.23 and 661,926.03

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Solution

The fourth proportional to 770,855.91, 1,063,078.23 and 661,926.03 is: 912,854.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    770,855.91 : 1,063,078.23 = 661,926.03 : x
  2. Step 2: Convert to fraction form
    770,855.91/1,063,078.23 = 661,926.03/x
  3. Step 3: Cross multiply
    770,855.91x = 1,063,078.23 × 661,926.03
  4. Step 4: Simplify right side
    770,855.91x = 703,679,152,363.33
  5. Step 5: Solve for x
    x = 703,679,152,363.33/770,855.91
  6. Step 6: Final answer
    x = 912,854.33

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.