Home / 711,656.26-982,085.03-389,367.65

Finding the Fourth Proportional to 711,656.26, 982,085.03 and 389,367.65

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Solution

The fourth proportional to 711,656.26, 982,085.03 and 389,367.65 is: 537,327.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    711,656.26 : 982,085.03 = 389,367.65 : x
  2. Step 2: Convert to fraction form
    711,656.26/982,085.03 = 389,367.65/x
  3. Step 3: Cross multiply
    711,656.26x = 982,085.03 × 389,367.65
  4. Step 4: Simplify right side
    711,656.26x = 382,392,140,739.65
  5. Step 5: Solve for x
    x = 382,392,140,739.65/711,656.26
  6. Step 6: Final answer
    x = 537,327.03

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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.