Home / 442,947.30-611,054.73-289,918.14

Finding the Fourth Proportional to 442,947.30, 611,054.73 and 289,918.14

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Solution

The fourth proportional to 442,947.30, 611,054.73 and 289,918.14 is: 399,947.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,947.30 : 611,054.73 = 289,918.14 : x
  2. Step 2: Convert to fraction form
    442,947.30/611,054.73 = 289,918.14/x
  3. Step 3: Cross multiply
    442,947.30x = 611,054.73 × 289,918.14
  4. Step 4: Simplify right side
    442,947.30x = 177,155,850,759.80
  5. Step 5: Solve for x
    x = 177,155,850,759.80/442,947.30
  6. Step 6: Final answer
    x = 399,947.92

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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.