Home / 770,500.20-1,155,404.70-297,028.20

Finding the Fourth Proportional to 770,500.20, 1,155,404.70 and 297,028.20

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Solution

The fourth proportional to 770,500.20, 1,155,404.70 and 297,028.20 is: 445,409.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    770,500.20 : 1,155,404.70 = 297,028.20 : x
  2. Step 2: Convert to fraction form
    770,500.20/1,155,404.70 = 297,028.20/x
  3. Step 3: Cross multiply
    770,500.20x = 1,155,404.70 × 297,028.20
  4. Step 4: Simplify right side
    770,500.20x = 343,187,778,312.54
  5. Step 5: Solve for x
    x = 343,187,778,312.54/770,500.20
  6. Step 6: Final answer
    x = 445,409.07

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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.