Home / 1,778,697-2,668,052.25-430,857

Finding the Fourth Proportional to 1,778,697, 2,668,052.25 and 430,857

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Solution

The fourth proportional to 1,778,697, 2,668,052.25 and 430,857 is: 646,287.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,778,697 : 2,668,052.25 = 430,857 : x
  2. Step 2: Convert to fraction form
    1,778,697/2,668,052.25 = 430,857/x
  3. Step 3: Cross multiply
    1,778,697x = 2,668,052.25 × 430,857
  4. Step 4: Simplify right side
    1,778,697x = 1,149,548,988,278.25
  5. Step 5: Solve for x
    x = 1,149,548,988,278.25/1,778,697
  6. Step 6: Final answer
    x = 646,287.14

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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.