Home / 3,121,085-4,307,097.30-1,690,301

Finding the Fourth Proportional to 3,121,085, 4,307,097.30 and 1,690,301

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Solution

The fourth proportional to 3,121,085, 4,307,097.30 and 1,690,301 is: 2,332,615.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,121,085 : 4,307,097.30 = 1,690,301 : x
  2. Step 2: Convert to fraction form
    3,121,085/4,307,097.30 = 1,690,301/x
  3. Step 3: Cross multiply
    3,121,085x = 4,307,097.30 × 1,690,301
  4. Step 4: Simplify right side
    3,121,085x = 7,280,290,873,287.30
  5. Step 5: Solve for x
    x = 7,280,290,873,287.30/3,121,085
  6. Step 6: Final answer
    x = 2,332,615.38

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.