Home / 1,168,971.60-1,753,457.40-420,920.40

Finding the Fourth Proportional to 1,168,971.60, 1,753,457.40 and 420,920.40

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Solution

The fourth proportional to 1,168,971.60, 1,753,457.40 and 420,920.40 is: 631,380.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,168,971.60 : 1,753,457.40 = 420,920.40 : x
  2. Step 2: Convert to fraction form
    1,168,971.60/1,753,457.40 = 420,920.40/x
  3. Step 3: Cross multiply
    1,168,971.60x = 1,753,457.40 × 420,920.40
  4. Step 4: Simplify right side
    1,168,971.60x = 738,065,990,190.96
  5. Step 5: Solve for x
    x = 738,065,990,190.96/1,168,971.60
  6. Step 6: Final answer
    x = 631,380.60

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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.