Home / 5,315,845.60-7,974,934.80-1,721,000.80

Finding the Fourth Proportional to 5,315,845.60, 7,974,934.80 and 1,721,000.80

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Solution

The fourth proportional to 5,315,845.60, 7,974,934.80 and 1,721,000.80 is: 2,581,878.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,315,845.60 : 7,974,934.80 = 1,721,000.80 : x
  2. Step 2: Convert to fraction form
    5,315,845.60/7,974,934.80 = 1,721,000.80/x
  3. Step 3: Cross multiply
    5,315,845.60x = 7,974,934.80 × 1,721,000.80
  4. Step 4: Simplify right side
    5,315,845.60x = 13,724,869,170,747.84
  5. Step 5: Solve for x
    x = 13,724,869,170,747.84/5,315,845.60
  6. Step 6: Final answer
    x = 2,581,878.82

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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.