Home / 931,764.26-1,397,677.48-257,789.12

Finding the Fourth Proportional to 931,764.26, 1,397,677.48 and 257,789.12

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Solution

The fourth proportional to 931,764.26, 1,397,677.48 and 257,789.12 is: 386,692.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    931,764.26 : 1,397,677.48 = 257,789.12 : x
  2. Step 2: Convert to fraction form
    931,764.26/1,397,677.48 = 257,789.12/x
  3. Step 3: Cross multiply
    931,764.26x = 1,397,677.48 × 257,789.12
  4. Step 4: Simplify right side
    931,764.26x = 360,306,039,980.16
  5. Step 5: Solve for x
    x = 360,306,039,980.16/931,764.26
  6. Step 6: Final answer
    x = 386,692.27

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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.