Home / 816,485.81-1,224,745.53-297,143.23

Finding the Fourth Proportional to 816,485.81, 1,224,745.53 and 297,143.23

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Solution

The fourth proportional to 816,485.81, 1,224,745.53 and 297,143.23 is: 445,720.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    816,485.81 : 1,224,745.53 = 297,143.23 : x
  2. Step 2: Convert to fraction form
    816,485.81/1,224,745.53 = 297,143.23/x
  3. Step 3: Cross multiply
    816,485.81x = 1,224,745.53 × 297,143.23
  4. Step 4: Simplify right side
    816,485.81x = 363,924,839,650.40
  5. Step 5: Solve for x
    x = 363,924,839,650.40/816,485.81
  6. Step 6: Final answer
    x = 445,720.96

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Double scale
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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.