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Finding the Fourth Proportional to 679,645.92, 937,879.26 and 373,735.19

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Solution

The fourth proportional to 679,645.92, 937,879.26 and 373,735.19 is: 515,736.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,645.92 : 937,879.26 = 373,735.19 : x
  2. Step 2: Convert to fraction form
    679,645.92/937,879.26 = 373,735.19/x
  3. Step 3: Cross multiply
    679,645.92x = 937,879.26 × 373,735.19
  4. Step 4: Simplify right side
    679,645.92x = 350,518,483,433.16
  5. Step 5: Solve for x
    x = 350,518,483,433.16/679,645.92
  6. Step 6: Final answer
    x = 515,736.91

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.