Home / 2,679,081.60-4,019,140.80-785,884.80

Finding the Fourth Proportional to 2,679,081.60, 4,019,140.80 and 785,884.80

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Solution

The fourth proportional to 2,679,081.60, 4,019,140.80 and 785,884.80 is: 1,178,979.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,679,081.60 : 4,019,140.80 = 785,884.80 : x
  2. Step 2: Convert to fraction form
    2,679,081.60/4,019,140.80 = 785,884.80/x
  3. Step 3: Cross multiply
    2,679,081.60x = 4,019,140.80 × 785,884.80
  4. Step 4: Simplify right side
    2,679,081.60x = 3,158,581,663,779.84
  5. Step 5: Solve for x
    x = 3,158,581,663,779.84/2,679,081.60
  6. Step 6: Final answer
    x = 1,178,979.27

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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.