Home / 1,108,022.68-1,529,192.80-642,979

Finding the Fourth Proportional to 1,108,022.68, 1,529,192.80 and 642,979

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Solution

The fourth proportional to 1,108,022.68, 1,529,192.80 and 642,979 is: 887,381.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,108,022.68 : 1,529,192.80 = 642,979 : x
  2. Step 2: Convert to fraction form
    1,108,022.68/1,529,192.80 = 642,979/x
  3. Step 3: Cross multiply
    1,108,022.68x = 1,529,192.80 × 642,979
  4. Step 4: Simplify right side
    1,108,022.68x = 983,238,857,351.20
  5. Step 5: Solve for x
    x = 983,238,857,351.20/1,108,022.68
  6. Step 6: Final answer
    x = 887,381.53

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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.