Home / 1,980,079.46-2,971,368.63-842,839.86

Finding the Fourth Proportional to 1,980,079.46, 2,971,368.63 and 842,839.86

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Solution

The fourth proportional to 1,980,079.46, 2,971,368.63 and 842,839.86 is: 1,264,791.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,980,079.46 : 2,971,368.63 = 842,839.86 : x
  2. Step 2: Convert to fraction form
    1,980,079.46/2,971,368.63 = 842,839.86/x
  3. Step 3: Cross multiply
    1,980,079.46x = 2,971,368.63 × 842,839.86
  4. Step 4: Simplify right side
    1,980,079.46x = 2,504,387,920,117.59
  5. Step 5: Solve for x
    x = 2,504,387,920,117.59/1,980,079.46
  6. Step 6: Final answer
    x = 1,264,791.63

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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.