Home / 938,700.56-1,407,215.66-339,528.44

Finding the Fourth Proportional to 938,700.56, 1,407,215.66 and 339,528.44

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Solution

The fourth proportional to 938,700.56, 1,407,215.66 and 339,528.44 is: 508,990.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    938,700.56 : 1,407,215.66 = 339,528.44 : x
  2. Step 2: Convert to fraction form
    938,700.56/1,407,215.66 = 339,528.44/x
  3. Step 3: Cross multiply
    938,700.56x = 1,407,215.66 × 339,528.44
  4. Step 4: Simplify right side
    938,700.56x = 477,789,737,783.37
  5. Step 5: Solve for x
    x = 477,789,737,783.37/938,700.56
  6. Step 6: Final answer
    x = 508,990.57

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1.5x scale

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.