Home / 3,280,603.20-4,920,904.80-1,931,380.80

Finding the Fourth Proportional to 3,280,603.20, 4,920,904.80 and 1,931,380.80

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Solution

The fourth proportional to 3,280,603.20, 4,920,904.80 and 1,931,380.80 is: 2,897,071.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,280,603.20 : 4,920,904.80 = 1,931,380.80 : x
  2. Step 2: Convert to fraction form
    3,280,603.20/4,920,904.80 = 1,931,380.80/x
  3. Step 3: Cross multiply
    3,280,603.20x = 4,920,904.80 × 1,931,380.80
  4. Step 4: Simplify right side
    3,280,603.20x = 9,504,141,049,347.84
  5. Step 5: Solve for x
    x = 9,504,141,049,347.84/3,280,603.20
  6. Step 6: Final answer
    x = 2,897,071.20

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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.