Home / 656,431.52-905,881.20-369,896.72

Finding the Fourth Proportional to 656,431.52, 905,881.20 and 369,896.72

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Solution

The fourth proportional to 656,431.52, 905,881.20 and 369,896.72 is: 510,460.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    656,431.52 : 905,881.20 = 369,896.72 : x
  2. Step 2: Convert to fraction form
    656,431.52/905,881.20 = 369,896.72/x
  3. Step 3: Cross multiply
    656,431.52x = 905,881.20 × 369,896.72
  4. Step 4: Simplify right side
    656,431.52x = 335,082,484,589.66
  5. Step 5: Solve for x
    x = 335,082,484,589.66/656,431.52
  6. Step 6: Final answer
    x = 510,460.69

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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.