Home / 938,512.20-1,408,059.90-369,965.10

Finding the Fourth Proportional to 938,512.20, 1,408,059.90 and 369,965.10

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Solution

The fourth proportional to 938,512.20, 1,408,059.90 and 369,965.10 is: 555,062.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    938,512.20 : 1,408,059.90 = 369,965.10 : x
  2. Step 2: Convert to fraction form
    938,512.20/1,408,059.90 = 369,965.10/x
  3. Step 3: Cross multiply
    938,512.20x = 1,408,059.90 × 369,965.10
  4. Step 4: Simplify right side
    938,512.20x = 520,933,021,709.49
  5. Step 5: Solve for x
    x = 520,933,021,709.49/938,512.20
  6. Step 6: Final answer
    x = 555,062.60

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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.