Home / 1,656,790.80-2,485,186.20-1,390,851.60

Finding the Fourth Proportional to 1,656,790.80, 2,485,186.20 and 1,390,851.60

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Solution

The fourth proportional to 1,656,790.80, 2,485,186.20 and 1,390,851.60 is: 2,086,277.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,656,790.80 : 2,485,186.20 = 1,390,851.60 : x
  2. Step 2: Convert to fraction form
    1,656,790.80/2,485,186.20 = 1,390,851.60/x
  3. Step 3: Cross multiply
    1,656,790.80x = 2,485,186.20 × 1,390,851.60
  4. Step 4: Simplify right side
    1,656,790.80x = 3,456,525,202,567.92
  5. Step 5: Solve for x
    x = 3,456,525,202,567.92/1,656,790.80
  6. Step 6: Final answer
    x = 2,086,277.40

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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.