Home / 1,217,492.40-1,680,188.94-673,619.34

Finding the Fourth Proportional to 1,217,492.40, 1,680,188.94 and 673,619.34

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Solution

The fourth proportional to 1,217,492.40, 1,680,188.94 and 673,619.34 is: 929,622.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,217,492.40 : 1,680,188.94 = 673,619.34 : x
  2. Step 2: Convert to fraction form
    1,217,492.40/1,680,188.94 = 673,619.34/x
  3. Step 3: Cross multiply
    1,217,492.40x = 1,680,188.94 × 673,619.34
  4. Step 4: Simplify right side
    1,217,492.40x = 1,131,807,764,838.10
  5. Step 5: Solve for x
    x = 1,131,807,764,838.10/1,217,492.40
  6. Step 6: Final answer
    x = 929,622.04

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.