Home / 683,600.70-1,025,391.45-309,623.10

Finding the Fourth Proportional to 683,600.70, 1,025,391.45 and 309,623.10

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Solution

The fourth proportional to 683,600.70, 1,025,391.45 and 309,623.10 is: 464,430.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    683,600.70 : 1,025,391.45 = 309,623.10 : x
  2. Step 2: Convert to fraction form
    683,600.70/1,025,391.45 = 309,623.10/x
  3. Step 3: Cross multiply
    683,600.70x = 1,025,391.45 × 309,623.10
  4. Step 4: Simplify right side
    683,600.70x = 317,484,879,462.50
  5. Step 5: Solve for x
    x = 317,484,879,462.50/683,600.70
  6. Step 6: Final answer
    x = 464,430.30

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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.