Finding the Fourth Proportional to 1,318,831.97, 1,977,971.13 and 371,981.26
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Solution
The fourth proportional to 1,318,831.97, 1,977,971.13 and 371,981.26 is: 557,893.81
Step by Step Solution
- Step 1: Write the proportion equation
1,318,831.97 : 1,977,971.13 = 371,981.26 : x - Step 2: Convert to fraction form
1,318,831.97/1,977,971.13 = 371,981.26/x - Step 3: Cross multiply
1,318,831.97x = 1,977,971.13 × 371,981.26 - Step 4: Simplify right side
1,318,831.97x = 735,768,193,181.02 - Step 5: Solve for x
x = 735,768,193,181.02/1,318,831.97 - Step 6: Final answer
x = 557,893.81
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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.