Home / 1,400,548.90-2,100,823.35-869,107.90

Finding the Fourth Proportional to 1,400,548.90, 2,100,823.35 and 869,107.90

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Solution

The fourth proportional to 1,400,548.90, 2,100,823.35 and 869,107.90 is: 1,303,661.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,400,548.90 : 2,100,823.35 = 869,107.90 : x
  2. Step 2: Convert to fraction form
    1,400,548.90/2,100,823.35 = 869,107.90/x
  3. Step 3: Cross multiply
    1,400,548.90x = 2,100,823.35 × 869,107.90
  4. Step 4: Simplify right side
    1,400,548.90x = 1,825,842,169,989.47
  5. Step 5: Solve for x
    x = 1,825,842,169,989.47/1,400,548.90
  6. Step 6: Final answer
    x = 1,303,661.85

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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.