Home / 1,108,142.01-1,529,170.14-642,959.91

Finding the Fourth Proportional to 1,108,142.01, 1,529,170.14 and 642,959.91

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Solution

The fourth proportional to 1,108,142.01, 1,529,170.14 and 642,959.91 is: 887,246.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,108,142.01 : 1,529,170.14 = 642,959.91 : x
  2. Step 2: Convert to fraction form
    1,108,142.01/1,529,170.14 = 642,959.91/x
  3. Step 3: Cross multiply
    1,108,142.01x = 1,529,170.14 × 642,959.91
  4. Step 4: Simplify right side
    1,108,142.01x = 983,195,095,589.09
  5. Step 5: Solve for x
    x = 983,195,095,589.09/1,108,142.01
  6. Step 6: Final answer
    x = 887,246.48

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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.