Finding the Fourth Proportional to 1,212,135.81, 1,672,746.85 and 695,922.99
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Solution
The fourth proportional to 1,212,135.81, 1,672,746.85 and 695,922.99 is: 960,373.40
Step by Step Solution
- Step 1: Write the proportion equation
1,212,135.81 : 1,672,746.85 = 695,922.99 : x - Step 2: Convert to fraction form
1,212,135.81/1,672,746.85 = 695,922.99/x - Step 3: Cross multiply
1,212,135.81x = 1,672,746.85 × 695,922.99 - Step 4: Simplify right side
1,212,135.81x = 1,164,102,989,365.08 - Step 5: Solve for x
x = 1,164,102,989,365.08/1,212,135.81 - Step 6: Final answer
x = 960,373.40
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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.