Home / 856,832.20-1,283,896.48-316,345.24

Finding the Fourth Proportional to 856,832.20, 1,283,896.48 and 316,345.24

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Solution

The fourth proportional to 856,832.20, 1,283,896.48 and 316,345.24 is: 474,018.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    856,832.20 : 1,283,896.48 = 316,345.24 : x
  2. Step 2: Convert to fraction form
    856,832.20/1,283,896.48 = 316,345.24/x
  3. Step 3: Cross multiply
    856,832.20x = 1,283,896.48 × 316,345.24
  4. Step 4: Simplify right side
    856,832.20x = 406,154,540,100.76
  5. Step 5: Solve for x
    x = 406,154,540,100.76/856,832.20
  6. Step 6: Final answer
    x = 474,018.76

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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.