Home / 1,971,817.80-2,957,726.70-1,298,659.20

Finding the Fourth Proportional to 1,971,817.80, 2,957,726.70 and 1,298,659.20

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Solution

The fourth proportional to 1,971,817.80, 2,957,726.70 and 1,298,659.20 is: 1,947,988.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,971,817.80 : 2,957,726.70 = 1,298,659.20 : x
  2. Step 2: Convert to fraction form
    1,971,817.80/2,957,726.70 = 1,298,659.20/x
  3. Step 3: Cross multiply
    1,971,817.80x = 2,957,726.70 × 1,298,659.20
  4. Step 4: Simplify right side
    1,971,817.80x = 3,841,078,990,040.64
  5. Step 5: Solve for x
    x = 3,841,078,990,040.64/1,971,817.80
  6. Step 6: Final answer
    x = 1,947,988.80

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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.