Finding the Fourth Proportional to 642,616.10, 963,924.15 and 618,121.70
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Solution
The fourth proportional to 642,616.10, 963,924.15 and 618,121.70 is: 927,182.55
Step by Step Solution
- Step 1: Write the proportion equation
642,616.10 : 963,924.15 = 618,121.70 : x - Step 2: Convert to fraction form
642,616.10/963,924.15 = 618,121.70/x - Step 3: Cross multiply
642,616.10x = 963,924.15 × 618,121.70 - Step 4: Simplify right side
642,616.10x = 595,822,434,269.06 - Step 5: Solve for x
x = 595,822,434,269.06/642,616.10 - Step 6: Final answer
x = 927,182.55
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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.