Home / 1,082,813.40-1,621,109.70-662,909.40

Finding the Fourth Proportional to 1,082,813.40, 1,621,109.70 and 662,909.40

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Solution

The fourth proportional to 1,082,813.40, 1,621,109.70 and 662,909.40 is: 992,459.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,082,813.40 : 1,621,109.70 = 662,909.40 : x
  2. Step 2: Convert to fraction form
    1,082,813.40/1,621,109.70 = 662,909.40/x
  3. Step 3: Cross multiply
    1,082,813.40x = 1,621,109.70 × 662,909.40
  4. Step 4: Simplify right side
    1,082,813.40x = 1,074,648,858,561.18
  5. Step 5: Solve for x
    x = 1,074,648,858,561.18/1,082,813.40
  6. Step 6: Final answer
    x = 992,459.88

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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.