Home / 1,253,166.60-1,879,749.90-779,608.20

Finding the Fourth Proportional to 1,253,166.60, 1,879,749.90 and 779,608.20

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Solution

The fourth proportional to 1,253,166.60, 1,879,749.90 and 779,608.20 is: 1,169,412.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,253,166.60 : 1,879,749.90 = 779,608.20 : x
  2. Step 2: Convert to fraction form
    1,253,166.60/1,879,749.90 = 779,608.20/x
  3. Step 3: Cross multiply
    1,253,166.60x = 1,879,749.90 × 779,608.20
  4. Step 4: Simplify right side
    1,253,166.60x = 1,465,468,435,989.18
  5. Step 5: Solve for x
    x = 1,465,468,435,989.18/1,253,166.60
  6. Step 6: Final answer
    x = 1,169,412.30

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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.