Home / 665,037.70-997,556.55-310,087.60

Finding the Fourth Proportional to 665,037.70, 997,556.55 and 310,087.60

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Solution

The fourth proportional to 665,037.70, 997,556.55 and 310,087.60 is: 465,131.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    665,037.70 : 997,556.55 = 310,087.60 : x
  2. Step 2: Convert to fraction form
    665,037.70/997,556.55 = 310,087.60/x
  3. Step 3: Cross multiply
    665,037.70x = 997,556.55 × 310,087.60
  4. Step 4: Simplify right side
    665,037.70x = 309,329,916,453.78
  5. Step 5: Solve for x
    x = 309,329,916,453.78/665,037.70
  6. Step 6: Final answer
    x = 465,131.40

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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.