Home / 1,971,809.80-2,957,714.70-1,298,651.20

Finding the Fourth Proportional to 1,971,809.80, 2,957,714.70 and 1,298,651.20

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Solution

The fourth proportional to 1,971,809.80, 2,957,714.70 and 1,298,651.20 is: 1,947,976.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,971,809.80 : 2,957,714.70 = 1,298,651.20 : x
  2. Step 2: Convert to fraction form
    1,971,809.80/2,957,714.70 = 1,298,651.20/x
  3. Step 3: Cross multiply
    1,971,809.80x = 2,957,714.70 × 1,298,651.20
  4. Step 4: Simplify right side
    1,971,809.80x = 3,841,039,744,412.64
  5. Step 5: Solve for x
    x = 3,841,039,744,412.64/1,971,809.80
  6. Step 6: Final answer
    x = 1,947,976.80

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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.