Home / 683,270.10-1,024,905.15-388,358.10

Finding the Fourth Proportional to 683,270.10, 1,024,905.15 and 388,358.10

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Solution

The fourth proportional to 683,270.10, 1,024,905.15 and 388,358.10 is: 582,537.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    683,270.10 : 1,024,905.15 = 388,358.10 : x
  2. Step 2: Convert to fraction form
    683,270.10/1,024,905.15 = 388,358.10/x
  3. Step 3: Cross multiply
    683,270.10x = 1,024,905.15 × 388,358.10
  4. Step 4: Simplify right side
    683,270.10x = 398,030,216,734.22
  5. Step 5: Solve for x
    x = 398,030,216,734.22/683,270.10
  6. Step 6: Final answer
    x = 582,537.15

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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.