Home / 1,973,079.80-2,959,619.70-1,299,921.20

Finding the Fourth Proportional to 1,973,079.80, 2,959,619.70 and 1,299,921.20

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Solution

The fourth proportional to 1,973,079.80, 2,959,619.70 and 1,299,921.20 is: 1,949,881.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,973,079.80 : 2,959,619.70 = 1,299,921.20 : x
  2. Step 2: Convert to fraction form
    1,973,079.80/2,959,619.70 = 1,299,921.20/x
  3. Step 3: Cross multiply
    1,973,079.80x = 2,959,619.70 × 1,299,921.20
  4. Step 4: Simplify right side
    1,973,079.80x = 3,847,272,391,967.64
  5. Step 5: Solve for x
    x = 3,847,272,391,967.64/1,973,079.80
  6. Step 6: Final answer
    x = 1,949,881.80

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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.