Home / 389,628.20-584,442.30-337,140.20

Finding the Fourth Proportional to 389,628.20, 584,442.30 and 337,140.20

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Solution

The fourth proportional to 389,628.20, 584,442.30 and 337,140.20 is: 505,710.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,628.20 : 584,442.30 = 337,140.20 : x
  2. Step 2: Convert to fraction form
    389,628.20/584,442.30 = 337,140.20/x
  3. Step 3: Cross multiply
    389,628.20x = 584,442.30 × 337,140.20
  4. Step 4: Simplify right side
    389,628.20x = 197,038,993,910.46
  5. Step 5: Solve for x
    x = 197,038,993,910.46/389,628.20
  6. Step 6: Final answer
    x = 505,710.30

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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.