Home / 1,209,828.40-1,814,742.60-579,972.40

Finding the Fourth Proportional to 1,209,828.40, 1,814,742.60 and 579,972.40

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Solution

The fourth proportional to 1,209,828.40, 1,814,742.60 and 579,972.40 is: 869,958.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,209,828.40 : 1,814,742.60 = 579,972.40 : x
  2. Step 2: Convert to fraction form
    1,209,828.40/1,814,742.60 = 579,972.40/x
  3. Step 3: Cross multiply
    1,209,828.40x = 1,814,742.60 × 579,972.40
  4. Step 4: Simplify right side
    1,209,828.40x = 1,052,500,621,104.24
  5. Step 5: Solve for x
    x = 1,052,500,621,104.24/1,209,828.40
  6. Step 6: Final answer
    x = 869,958.60

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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.