Home / 859,563.70-1,289,345.55-779,847.55

Finding the Fourth Proportional to 859,563.70, 1,289,345.55 and 779,847.55

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Solution

The fourth proportional to 859,563.70, 1,289,345.55 and 779,847.55 is: 1,169,771.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    859,563.70 : 1,289,345.55 = 779,847.55 : x
  2. Step 2: Convert to fraction form
    859,563.70/1,289,345.55 = 779,847.55/x
  3. Step 3: Cross multiply
    859,563.70x = 1,289,345.55 × 779,847.55
  4. Step 4: Simplify right side
    859,563.70x = 1,005,492,968,270.90
  5. Step 5: Solve for x
    x = 1,005,492,968,270.90/859,563.70
  6. Step 6: Final answer
    x = 1,169,771.33

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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.