Home / 1,991,080.80-2,988,176.40-926,254.80

Finding the Fourth Proportional to 1,991,080.80, 2,988,176.40 and 926,254.80

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Solution

The fourth proportional to 1,991,080.80, 2,988,176.40 and 926,254.80 is: 1,390,105.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,991,080.80 : 2,988,176.40 = 926,254.80 : x
  2. Step 2: Convert to fraction form
    1,991,080.80/2,988,176.40 = 926,254.80/x
  3. Step 3: Cross multiply
    1,991,080.80x = 2,988,176.40 × 926,254.80
  4. Step 4: Simplify right side
    1,991,080.80x = 2,767,812,733,746.72
  5. Step 5: Solve for x
    x = 2,767,812,733,746.72/1,991,080.80
  6. Step 6: Final answer
    x = 1,390,105.68

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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.