Home / 1,259,618.75-1,889,429.49-312,989.47

Finding the Fourth Proportional to 1,259,618.75, 1,889,429.49 and 312,989.47

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Solution

The fourth proportional to 1,259,618.75, 1,889,429.49 and 312,989.47 is: 469,484.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,259,618.75 : 1,889,429.49 = 312,989.47 : x
  2. Step 2: Convert to fraction form
    1,259,618.75/1,889,429.49 = 312,989.47/x
  3. Step 3: Cross multiply
    1,259,618.75x = 1,889,429.49 × 312,989.47
  4. Step 4: Simplify right side
    1,259,618.75x = 591,371,534,677.47
  5. Step 5: Solve for x
    x = 591,371,534,677.47/1,259,618.75
  6. Step 6: Final answer
    x = 469,484.54

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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.