Home / 656,129.13-905,512.03-369,668.58

Finding the Fourth Proportional to 656,129.13, 905,512.03 and 369,668.58

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Solution

The fourth proportional to 656,129.13, 905,512.03 and 369,668.58 is: 510,172.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    656,129.13 : 905,512.03 = 369,668.58 : x
  2. Step 2: Convert to fraction form
    656,129.13/905,512.03 = 369,668.58/x
  3. Step 3: Cross multiply
    656,129.13x = 905,512.03 × 369,668.58
  4. Step 4: Simplify right side
    656,129.13x = 334,739,344,454.68
  5. Step 5: Solve for x
    x = 334,739,344,454.68/656,129.13
  6. Step 6: Final answer
    x = 510,172.97

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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.