Home / 1,115,192.70-1,672,852.77-316,411.20

Finding the Fourth Proportional to 1,115,192.70, 1,672,852.77 and 316,411.20

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Solution

The fourth proportional to 1,115,192.70, 1,672,852.77 and 316,411.20 is: 474,634.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,115,192.70 : 1,672,852.77 = 316,411.20 : x
  2. Step 2: Convert to fraction form
    1,115,192.70/1,672,852.77 = 316,411.20/x
  3. Step 3: Cross multiply
    1,115,192.70x = 1,672,852.77 × 316,411.20
  4. Step 4: Simplify right side
    1,115,192.70x = 529,309,352,379.02
  5. Step 5: Solve for x
    x = 529,309,352,379.02/1,115,192.70
  6. Step 6: Final answer
    x = 474,634.88

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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.