Home / 571,230.09-856,623.60-304,845.30

Finding the Fourth Proportional to 571,230.09, 856,623.60 and 304,845.30

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Solution

The fourth proportional to 571,230.09, 856,623.60 and 304,845.30 is: 457,149.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    571,230.09 : 856,623.60 = 304,845.30 : x
  2. Step 2: Convert to fraction form
    571,230.09/856,623.60 = 304,845.30/x
  3. Step 3: Cross multiply
    571,230.09x = 856,623.60 × 304,845.30
  4. Step 4: Simplify right side
    571,230.09x = 261,137,678,329.08
  5. Step 5: Solve for x
    x = 261,137,678,329.08/571,230.09
  6. Step 6: Final answer
    x = 457,149.72

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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.