Home / 2,987,412.71-4,122,610.70-1,698,253.16

Finding the Fourth Proportional to 2,987,412.71, 4,122,610.70 and 1,698,253.16

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Solution

The fourth proportional to 2,987,412.71, 4,122,610.70 and 1,698,253.16 is: 2,343,578.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,987,412.71 : 4,122,610.70 = 1,698,253.16 : x
  2. Step 2: Convert to fraction form
    2,987,412.71/4,122,610.70 = 1,698,253.16/x
  3. Step 3: Cross multiply
    2,987,412.71x = 4,122,610.70 × 1,698,253.16
  4. Step 4: Simplify right side
    2,987,412.71x = 7,001,236,619,620.49
  5. Step 5: Solve for x
    x = 7,001,236,619,620.49/2,987,412.71
  6. Step 6: Final answer
    x = 2,343,578.65

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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.