Home / 683,401.05-1,025,101.58-210,085.65

Finding the Fourth Proportional to 683,401.05, 1,025,101.58 and 210,085.65

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Solution

The fourth proportional to 683,401.05, 1,025,101.58 and 210,085.65 is: 315,128.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    683,401.05 : 1,025,101.58 = 210,085.65 : x
  2. Step 2: Convert to fraction form
    683,401.05/1,025,101.58 = 210,085.65/x
  3. Step 3: Cross multiply
    683,401.05x = 1,025,101.58 × 210,085.65
  4. Step 4: Simplify right side
    683,401.05x = 215,359,130,699.90
  5. Step 5: Solve for x
    x = 215,359,130,699.90/683,401.05
  6. Step 6: Final answer
    x = 315,128.48

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Double scale
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Similar ratio
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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.