Home / 856,499.80-1,283,415.30-323,730.20

Finding the Fourth Proportional to 856,499.80, 1,283,415.30 and 323,730.20

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Solution

The fourth proportional to 856,499.80, 1,283,415.30 and 323,730.20 is: 485,090.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    856,499.80 : 1,283,415.30 = 323,730.20 : x
  2. Step 2: Convert to fraction form
    856,499.80/1,283,415.30 = 323,730.20/x
  3. Step 3: Cross multiply
    856,499.80x = 1,283,415.30 × 323,730.20
  4. Step 4: Simplify right side
    856,499.80x = 415,480,291,752.06
  5. Step 5: Solve for x
    x = 415,480,291,752.06/856,499.80
  6. Step 6: Final answer
    x = 485,090.94

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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.