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Finding the Fourth Proportional to 519,122.10, 778,683.15 and 366,906.90

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Solution

The fourth proportional to 519,122.10, 778,683.15 and 366,906.90 is: 550,360.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,122.10 : 778,683.15 = 366,906.90 : x
  2. Step 2: Convert to fraction form
    519,122.10/778,683.15 = 366,906.90/x
  3. Step 3: Cross multiply
    519,122.10x = 778,683.15 × 366,906.90
  4. Step 4: Simplify right side
    519,122.10x = 285,704,220,648.74
  5. Step 5: Solve for x
    x = 285,704,220,648.74/519,122.10
  6. Step 6: Final answer
    x = 550,360.35

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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.