Finding the Fourth Proportional to 1,689,140.78, 2,331,052.17 and 963,974.06
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Solution
The fourth proportional to 1,689,140.78, 2,331,052.17 and 963,974.06 is: 1,330,305.83
Step by Step Solution
- Step 1: Write the proportion equation
1,689,140.78 : 2,331,052.17 = 963,974.06 : x - Step 2: Convert to fraction form
1,689,140.78/2,331,052.17 = 963,974.06/x - Step 3: Cross multiply
1,689,140.78x = 2,331,052.17 × 963,974.06 - Step 4: Simplify right side
1,689,140.78x = 2,247,073,824,386.71 - Step 5: Solve for x
x = 2,247,073,824,386.71/1,689,140.78 - Step 6: Final answer
x = 1,330,305.83
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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.