Finding the Fourth Proportional to 1,178,673.19, 1,627,013.35 and 688,801.75
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Solution
The fourth proportional to 1,178,673.19, 1,627,013.35 and 688,801.75 is: 950,806.09
Step by Step Solution
- Step 1: Write the proportion equation
1,178,673.19 : 1,627,013.35 = 688,801.75 : x - Step 2: Convert to fraction form
1,178,673.19/1,627,013.35 = 688,801.75/x - Step 3: Cross multiply
1,178,673.19x = 1,627,013.35 × 688,801.75 - Step 4: Simplify right side
1,178,673.19x = 1,120,689,639,546.83 - Step 5: Solve for x
x = 1,120,689,639,546.83/1,178,673.19 - Step 6: Final answer
x = 950,806.09
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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.