Home / 1,398,143.52-2,097,208.77-438,669.36

Finding the Fourth Proportional to 1,398,143.52, 2,097,208.77 and 438,669.36

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Solution

The fourth proportional to 1,398,143.52, 2,097,208.77 and 438,669.36 is: 658,002.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,398,143.52 : 2,097,208.77 = 438,669.36 : x
  2. Step 2: Convert to fraction form
    1,398,143.52/2,097,208.77 = 438,669.36/x
  3. Step 3: Cross multiply
    1,398,143.52x = 2,097,208.77 × 438,669.36
  4. Step 4: Simplify right side
    1,398,143.52x = 919,981,228,922.29
  5. Step 5: Solve for x
    x = 919,981,228,922.29/1,398,143.52
  6. Step 6: Final answer
    x = 658,002.00

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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.