Home / 723,682.72-1,085,492.67-243,878.80

Finding the Fourth Proportional to 723,682.72, 1,085,492.67 and 243,878.80

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Solution

The fourth proportional to 723,682.72, 1,085,492.67 and 243,878.80 is: 365,807.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    723,682.72 : 1,085,492.67 = 243,878.80 : x
  2. Step 2: Convert to fraction form
    723,682.72/1,085,492.67 = 243,878.80/x
  3. Step 3: Cross multiply
    723,682.72x = 1,085,492.67 × 243,878.80
  4. Step 4: Simplify right side
    723,682.72x = 264,728,649,768.40
  5. Step 5: Solve for x
    x = 264,728,649,768.40/723,682.72
  6. Step 6: Final answer
    x = 365,807.61

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Half scale
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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.