Home / 1,069,307.70-1,603,961.55-321,353.70

Finding the Fourth Proportional to 1,069,307.70, 1,603,961.55 and 321,353.70

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Solution

The fourth proportional to 1,069,307.70, 1,603,961.55 and 321,353.70 is: 482,030.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,069,307.70 : 1,603,961.55 = 321,353.70 : x
  2. Step 2: Convert to fraction form
    1,069,307.70/1,603,961.55 = 321,353.70/x
  3. Step 3: Cross multiply
    1,069,307.70x = 1,603,961.55 × 321,353.70
  4. Step 4: Simplify right side
    1,069,307.70x = 515,438,978,750.24
  5. Step 5: Solve for x
    x = 515,438,978,750.24/1,069,307.70
  6. Step 6: Final answer
    x = 482,030.55

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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.