Home / 2,163,226.47-2,985,651.90-1,389,824.13

Finding the Fourth Proportional to 2,163,226.47, 2,985,651.90 and 1,389,824.13

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Solution

The fourth proportional to 2,163,226.47, 2,985,651.90 and 1,389,824.13 is: 1,918,213.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,163,226.47 : 2,985,651.90 = 1,389,824.13 : x
  2. Step 2: Convert to fraction form
    2,163,226.47/2,985,651.90 = 1,389,824.13/x
  3. Step 3: Cross multiply
    2,163,226.47x = 2,985,651.90 × 1,389,824.13
  4. Step 4: Simplify right side
    2,163,226.47x = 4,149,531,054,400.35
  5. Step 5: Solve for x
    x = 4,149,531,054,400.35/2,163,226.47
  6. Step 6: Final answer
    x = 1,918,213.89

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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.