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Finding the Fourth Proportional to 522,079.55, 783,119.33 and 321,750.35

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Solution

The fourth proportional to 522,079.55, 783,119.33 and 321,750.35 is: 482,625.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    522,079.55 : 783,119.33 = 321,750.35 : x
  2. Step 2: Convert to fraction form
    522,079.55/783,119.33 = 321,750.35/x
  3. Step 3: Cross multiply
    522,079.55x = 783,119.33 × 321,750.35
  4. Step 4: Simplify right side
    522,079.55x = 251,968,916,910.51
  5. Step 5: Solve for x
    x = 251,968,916,910.51/522,079.55
  6. Step 6: Final answer
    x = 482,625.53

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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.