Home / 856,460.80-1,283,356.80-323,691.20

Finding the Fourth Proportional to 856,460.80, 1,283,356.80 and 323,691.20

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Solution

The fourth proportional to 856,460.80, 1,283,356.80 and 323,691.20 is: 485,032.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    856,460.80 : 1,283,356.80 = 323,691.20 : x
  2. Step 2: Convert to fraction form
    856,460.80/1,283,356.80 = 323,691.20/x
  3. Step 3: Cross multiply
    856,460.80x = 1,283,356.80 × 323,691.20
  4. Step 4: Simplify right side
    856,460.80x = 415,411,302,620.16
  5. Step 5: Solve for x
    x = 415,411,302,620.16/856,460.80
  6. Step 6: Final answer
    x = 485,032.48

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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.