Home / 1,128,969.30-1,557,989.28-612,727.65

Finding the Fourth Proportional to 1,128,969.30, 1,557,989.28 and 612,727.65

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Solution

The fourth proportional to 1,128,969.30, 1,557,989.28 and 612,727.65 is: 845,570.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,128,969.30 : 1,557,989.28 = 612,727.65 : x
  2. Step 2: Convert to fraction form
    1,128,969.30/1,557,989.28 = 612,727.65/x
  3. Step 3: Cross multiply
    1,128,969.30x = 1,557,989.28 × 612,727.65
  4. Step 4: Simplify right side
    1,128,969.30x = 954,623,110,259.59
  5. Step 5: Solve for x
    x = 954,623,110,259.59/1,128,969.30
  6. Step 6: Final answer
    x = 845,570.48

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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.