Home / 780,043.10-1,170,064.65-683,620.70

Finding the Fourth Proportional to 780,043.10, 1,170,064.65 and 683,620.70

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Solution

The fourth proportional to 780,043.10, 1,170,064.65 and 683,620.70 is: 1,025,431.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,043.10 : 1,170,064.65 = 683,620.70 : x
  2. Step 2: Convert to fraction form
    780,043.10/1,170,064.65 = 683,620.70/x
  3. Step 3: Cross multiply
    780,043.10x = 1,170,064.65 × 683,620.70
  4. Step 4: Simplify right side
    780,043.10x = 799,880,415,078.26
  5. Step 5: Solve for x
    x = 799,880,415,078.26/780,043.10
  6. Step 6: Final answer
    x = 1,025,431.05

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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.