Home / 1,109,847.80-1,665,549.30-711,457.40

Finding the Fourth Proportional to 1,109,847.80, 1,665,549.30 and 711,457.40

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Solution

The fourth proportional to 1,109,847.80, 1,665,549.30 and 711,457.40 is: 1,067,684.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,109,847.80 : 1,665,549.30 = 711,457.40 : x
  2. Step 2: Convert to fraction form
    1,109,847.80/1,665,549.30 = 711,457.40/x
  3. Step 3: Cross multiply
    1,109,847.80x = 1,665,549.30 × 711,457.40
  4. Step 4: Simplify right side
    1,109,847.80x = 1,184,967,374,549.82
  5. Step 5: Solve for x
    x = 1,184,967,374,549.82/1,109,847.80
  6. Step 6: Final answer
    x = 1,067,684.57

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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.