Home / 2,157,645.80-2,977,464.17-1,190,763.53

Finding the Fourth Proportional to 2,157,645.80, 2,977,464.17 and 1,190,763.53

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Solution

The fourth proportional to 2,157,645.80, 2,977,464.17 and 1,190,763.53 is: 1,643,205.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,157,645.80 : 2,977,464.17 = 1,190,763.53 : x
  2. Step 2: Convert to fraction form
    2,157,645.80/2,977,464.17 = 1,190,763.53/x
  3. Step 3: Cross multiply
    2,157,645.80x = 2,977,464.17 × 1,190,763.53
  4. Step 4: Simplify right side
    2,157,645.80x = 3,545,455,754,822.99
  5. Step 5: Solve for x
    x = 3,545,455,754,822.99/2,157,645.80
  6. Step 6: Final answer
    x = 1,643,205.64

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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.