Home / 389,629.70-584,444.55-275,468.30

Finding the Fourth Proportional to 389,629.70, 584,444.55 and 275,468.30

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Solution

The fourth proportional to 389,629.70, 584,444.55 and 275,468.30 is: 413,202.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,629.70 : 584,444.55 = 275,468.30 : x
  2. Step 2: Convert to fraction form
    389,629.70/584,444.55 = 275,468.30/x
  3. Step 3: Cross multiply
    389,629.70x = 584,444.55 × 275,468.30
  4. Step 4: Simplify right side
    389,629.70x = 160,995,946,632.77
  5. Step 5: Solve for x
    x = 160,995,946,632.77/389,629.70
  6. Step 6: Final answer
    x = 413,202.45

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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.