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Finding the Fourth Proportional to 662,105.73, 993,257.42 and 307,155.63

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Solution

The fourth proportional to 662,105.73, 993,257.42 and 307,155.63 is: 460,779.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    662,105.73 : 993,257.42 = 307,155.63 : x
  2. Step 2: Convert to fraction form
    662,105.73/993,257.42 = 307,155.63/x
  3. Step 3: Cross multiply
    662,105.73x = 993,257.42 × 307,155.63
  4. Step 4: Simplify right side
    662,105.73x = 305,084,607,056.50
  5. Step 5: Solve for x
    x = 305,084,607,056.50/662,105.73
  6. Step 6: Final answer
    x = 460,779.29

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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.