Home / 620,445.03-856,181.25-348,524.38

Finding the Fourth Proportional to 620,445.03, 856,181.25 and 348,524.38

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Solution

The fourth proportional to 620,445.03, 856,181.25 and 348,524.38 is: 480,945.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    620,445.03 : 856,181.25 = 348,524.38 : x
  2. Step 2: Convert to fraction form
    620,445.03/856,181.25 = 348,524.38/x
  3. Step 3: Cross multiply
    620,445.03x = 856,181.25 × 348,524.38
  4. Step 4: Simplify right side
    620,445.03x = 298,400,039,323.88
  5. Step 5: Solve for x
    x = 298,400,039,323.88/620,445.03
  6. Step 6: Final answer
    x = 480,945.17

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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.