Home / 1,020,388.80-1,530,745.20-346,533.60

Finding the Fourth Proportional to 1,020,388.80, 1,530,745.20 and 346,533.60

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Solution

The fourth proportional to 1,020,388.80, 1,530,745.20 and 346,533.60 is: 519,855.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,020,388.80 : 1,530,745.20 = 346,533.60 : x
  2. Step 2: Convert to fraction form
    1,020,388.80/1,530,745.20 = 346,533.60/x
  3. Step 3: Cross multiply
    1,020,388.80x = 1,530,745.20 × 346,533.60
  4. Step 4: Simplify right side
    1,020,388.80x = 530,454,644,838.72
  5. Step 5: Solve for x
    x = 530,454,644,838.72/1,020,388.80
  6. Step 6: Final answer
    x = 519,855.42

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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.