Home / 1,359,903.60-2,039,855.40-1,212,937.20

Finding the Fourth Proportional to 1,359,903.60, 2,039,855.40 and 1,212,937.20

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Solution

The fourth proportional to 1,359,903.60, 2,039,855.40 and 1,212,937.20 is: 1,819,405.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,359,903.60 : 2,039,855.40 = 1,212,937.20 : x
  2. Step 2: Convert to fraction form
    1,359,903.60/2,039,855.40 = 1,212,937.20/x
  3. Step 3: Cross multiply
    1,359,903.60x = 2,039,855.40 × 1,212,937.20
  4. Step 4: Simplify right side
    1,359,903.60x = 2,474,216,497,280.88
  5. Step 5: Solve for x
    x = 2,474,216,497,280.88/1,359,903.60
  6. Step 6: Final answer
    x = 1,819,405.80

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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.