Home / 1,221,009.80-1,830,218.70-589,512.20

Finding the Fourth Proportional to 1,221,009.80, 1,830,218.70 and 589,512.20

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Solution

The fourth proportional to 1,221,009.80, 1,830,218.70 and 589,512.20 is: 883,642.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,221,009.80 : 1,830,218.70 = 589,512.20 : x
  2. Step 2: Convert to fraction form
    1,221,009.80/1,830,218.70 = 589,512.20/x
  3. Step 3: Cross multiply
    1,221,009.80x = 1,830,218.70 × 589,512.20
  4. Step 4: Simplify right side
    1,221,009.80x = 1,078,936,252,318.14
  5. Step 5: Solve for x
    x = 1,078,936,252,318.14/1,221,009.80
  6. Step 6: Final answer
    x = 883,642.58

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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.