Home / 1,355,133.22-2,029,989.67-815,091.29

Finding the Fourth Proportional to 1,355,133.22, 2,029,989.67 and 815,091.29

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Solution

The fourth proportional to 1,355,133.22, 2,029,989.67 and 815,091.29 is: 1,221,006.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,355,133.22 : 2,029,989.67 = 815,091.29 : x
  2. Step 2: Convert to fraction form
    1,355,133.22/2,029,989.67 = 815,091.29/x
  3. Step 3: Cross multiply
    1,355,133.22x = 2,029,989.67 × 815,091.29
  4. Step 4: Simplify right side
    1,355,133.22x = 1,654,626,903,566.41
  5. Step 5: Solve for x
    x = 1,654,626,903,566.41/1,355,133.22
  6. Step 6: Final answer
    x = 1,221,006.82

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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.