Home / 1,069,400.40-1,603,954.80-321,446.40

Finding the Fourth Proportional to 1,069,400.40, 1,603,954.80 and 321,446.40

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Solution

The fourth proportional to 1,069,400.40, 1,603,954.80 and 321,446.40 is: 482,125.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,069,400.40 : 1,603,954.80 = 321,446.40 : x
  2. Step 2: Convert to fraction form
    1,069,400.40/1,603,954.80 = 321,446.40/x
  3. Step 3: Cross multiply
    1,069,400.40x = 1,603,954.80 × 321,446.40
  4. Step 4: Simplify right side
    1,069,400.40x = 515,585,496,222.72
  5. Step 5: Solve for x
    x = 515,585,496,222.72/1,069,400.40
  6. Step 6: Final answer
    x = 482,125.77

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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.