Home / 1,401,009.60-2,103,069.60-869,131.20

Finding the Fourth Proportional to 1,401,009.60, 2,103,069.60 and 869,131.20

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Solution

The fourth proportional to 1,401,009.60, 2,103,069.60 and 869,131.20 is: 1,304,661.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,401,009.60 : 2,103,069.60 = 869,131.20 : x
  2. Step 2: Convert to fraction form
    1,401,009.60/2,103,069.60 = 869,131.20/x
  3. Step 3: Cross multiply
    1,401,009.60x = 2,103,069.60 × 869,131.20
  4. Step 4: Simplify right side
    1,401,009.60x = 1,827,843,405,131.52
  5. Step 5: Solve for x
    x = 1,827,843,405,131.52/1,401,009.60
  6. Step 6: Final answer
    x = 1,304,661.58

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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.