Finding the Fourth Proportional to 3,688,890.84, 5,533,853.94 and 1,292,186.70
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Solution
The fourth proportional to 3,688,890.84, 5,533,853.94 and 1,292,186.70 is: 1,938,461.39
Step by Step Solution
- Step 1: Write the proportion equation
3,688,890.84 : 5,533,853.94 = 1,292,186.70 : x - Step 2: Convert to fraction form
3,688,890.84/5,533,853.94 = 1,292,186.70/x - Step 3: Cross multiply
3,688,890.84x = 5,533,853.94 × 1,292,186.70 - Step 4: Simplify right side
3,688,890.84x = 7,150,772,461,010.60 - Step 5: Solve for x
x = 7,150,772,461,010.60/3,688,890.84 - Step 6: Final answer
x = 1,938,461.39
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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.