Finding the Fourth Proportional to 1,689,071.38, 2,330,963.79 and 953,966.68
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Solution
The fourth proportional to 1,689,071.38, 2,330,963.79 and 953,966.68 is: 1,316,499.60
Step by Step Solution
- Step 1: Write the proportion equation
1,689,071.38 : 2,330,963.79 = 953,966.68 : x - Step 2: Convert to fraction form
1,689,071.38/2,330,963.79 = 953,966.68/x - Step 3: Cross multiply
1,689,071.38x = 2,330,963.79 × 953,966.68 - Step 4: Simplify right side
1,689,071.38x = 2,223,661,787,946.52 - Step 5: Solve for x
x = 2,223,661,787,946.52/1,689,071.38 - Step 6: Final answer
x = 1,316,499.60
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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.