Finding the Fourth Proportional to 2,768,948.84, 3,821,341.21 and 1,545,493.05
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Solution
The fourth proportional to 2,768,948.84, 3,821,341.21 and 1,545,493.05 is: 2,132,887.47
Step by Step Solution
- Step 1: Write the proportion equation
2,768,948.84 : 3,821,341.21 = 1,545,493.05 : x - Step 2: Convert to fraction form
2,768,948.84/3,821,341.21 = 1,545,493.05/x - Step 3: Cross multiply
2,768,948.84x = 3,821,341.21 × 1,545,493.05 - Step 4: Simplify right side
2,768,948.84x = 5,905,856,281,733.59 - Step 5: Solve for x
x = 5,905,856,281,733.59/2,768,948.84 - Step 6: Final answer
x = 2,132,887.47
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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.