Finding the Fourth Proportional to 1,318,831.81, 1,977,970.88 and 371,981.09
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Solution
The fourth proportional to 1,318,831.81, 1,977,970.88 and 371,981.09 is: 557,893.56
Step by Step Solution
- Step 1: Write the proportion equation
1,318,831.81 : 1,977,970.88 = 371,981.09 : x - Step 2: Convert to fraction form
1,318,831.81/1,977,970.88 = 371,981.09/x - Step 3: Cross multiply
1,318,831.81x = 1,977,970.88 × 371,981.09 - Step 4: Simplify right side
1,318,831.81x = 735,767,769,805.54 - Step 5: Solve for x
x = 735,767,769,805.54/1,318,831.81 - Step 6: Final answer
x = 557,893.56
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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.