Home / 769,745.60-1,152,868.80-395,331.20

Finding the Fourth Proportional to 769,745.60, 1,152,868.80 and 395,331.20

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Solution

The fourth proportional to 769,745.60, 1,152,868.80 and 395,331.20 is: 592,098.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    769,745.60 : 1,152,868.80 = 395,331.20 : x
  2. Step 2: Convert to fraction form
    769,745.60/1,152,868.80 = 395,331.20/x
  3. Step 3: Cross multiply
    769,745.60x = 1,152,868.80 × 395,331.20
  4. Step 4: Simplify right side
    769,745.60x = 455,765,006,146.56
  5. Step 5: Solve for x
    x = 455,765,006,146.56/769,745.60
  6. Step 6: Final answer
    x = 592,098.23

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1.5x scale

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.