Finding the Fourth Proportional to 1,533,630.58, 2,116,567.68 and 921,981.36
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Solution
The fourth proportional to 1,533,630.58, 2,116,567.68 and 921,981.36 is: 1,272,428.95
Step by Step Solution
- Step 1: Write the proportion equation
1,533,630.58 : 2,116,567.68 = 921,981.36 : x - Step 2: Convert to fraction form
1,533,630.58/2,116,567.68 = 921,981.36/x - Step 3: Cross multiply
1,533,630.58x = 2,116,567.68 × 921,981.36 - Step 4: Simplify right side
1,533,630.58x = 1,951,435,948,138.44 - Step 5: Solve for x
x = 1,951,435,948,138.44/1,533,630.58 - Step 6: Final answer
x = 1,272,428.95
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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.