Home / 1,162,379.76-1,604,799.72-921,634.80

Finding the Fourth Proportional to 1,162,379.76, 1,604,799.72 and 921,634.80

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Solution

The fourth proportional to 1,162,379.76, 1,604,799.72 and 921,634.80 is: 1,272,423.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,162,379.76 : 1,604,799.72 = 921,634.80 : x
  2. Step 2: Convert to fraction form
    1,162,379.76/1,604,799.72 = 921,634.80/x
  3. Step 3: Cross multiply
    1,162,379.76x = 1,604,799.72 × 921,634.80
  4. Step 4: Simplify right side
    1,162,379.76x = 1,479,039,268,982.26
  5. Step 5: Solve for x
    x = 1,479,039,268,982.26/1,162,379.76
  6. Step 6: Final answer
    x = 1,272,423.45

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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.