Home / 1,277,884.80-1,914,494.40-778,665.60

Finding the Fourth Proportional to 1,277,884.80, 1,914,494.40 and 778,665.60

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Solution

The fourth proportional to 1,277,884.80, 1,914,494.40 and 778,665.60 is: 1,166,576.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,277,884.80 : 1,914,494.40 = 778,665.60 : x
  2. Step 2: Convert to fraction form
    1,277,884.80/1,914,494.40 = 778,665.60/x
  3. Step 3: Cross multiply
    1,277,884.80x = 1,914,494.40 × 778,665.60
  4. Step 4: Simplify right side
    1,277,884.80x = 1,490,750,930,672.64
  5. Step 5: Solve for x
    x = 1,490,750,930,672.64/1,277,884.80
  6. Step 6: Final answer
    x = 1,166,576.93

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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.