Home / 638,114.90-880,604.46-351,645.23

Finding the Fourth Proportional to 638,114.90, 880,604.46 and 351,645.23

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Solution

The fourth proportional to 638,114.90, 880,604.46 and 351,645.23 is: 485,273.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,114.90 : 880,604.46 = 351,645.23 : x
  2. Step 2: Convert to fraction form
    638,114.90/880,604.46 = 351,645.23/x
  3. Step 3: Cross multiply
    638,114.90x = 880,604.46 × 351,645.23
  4. Step 4: Simplify right side
    638,114.90x = 309,660,360,077.24
  5. Step 5: Solve for x
    x = 309,660,360,077.24/638,114.90
  6. Step 6: Final answer
    x = 485,273.67

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1.5x scale

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.