Finding the Fourth Proportional to 1,921,359.20, 2,651,495.36 and 1,050,218.76
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Solution
The fourth proportional to 1,921,359.20, 2,651,495.36 and 1,050,218.76 is: 1,449,312.64
Step by Step Solution
- Step 1: Write the proportion equation
1,921,359.20 : 2,651,495.36 = 1,050,218.76 : x - Step 2: Convert to fraction form
1,921,359.20/2,651,495.36 = 1,050,218.76/x - Step 3: Cross multiply
1,921,359.20x = 2,651,495.36 × 1,050,218.76 - Step 4: Simplify right side
1,921,359.20x = 2,784,650,169,124.95 - Step 5: Solve for x
x = 2,784,650,169,124.95/1,921,359.20 - Step 6: Final answer
x = 1,449,312.64
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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.