Home / 1,980,079.40-2,970,119.10-1,696,644.20

Finding the Fourth Proportional to 1,980,079.40, 2,970,119.10 and 1,696,644.20

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Solution

The fourth proportional to 1,980,079.40, 2,970,119.10 and 1,696,644.20 is: 2,544,966.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,980,079.40 : 2,970,119.10 = 1,696,644.20 : x
  2. Step 2: Convert to fraction form
    1,980,079.40/2,970,119.10 = 1,696,644.20/x
  3. Step 3: Cross multiply
    1,980,079.40x = 2,970,119.10 × 1,696,644.20
  4. Step 4: Simplify right side
    1,980,079.40x = 5,039,235,344,324.22
  5. Step 5: Solve for x
    x = 5,039,235,344,324.22/1,980,079.40
  6. Step 6: Final answer
    x = 2,544,966.30

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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.