Finding the Fourth Proportional to 1,381,430.07, 1,892,566.08 and 1,329,655.47
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Solution
The fourth proportional to 1,381,430.07, 1,892,566.08 and 1,329,655.47 is: 1,821,634.62
Step by Step Solution
- Step 1: Write the proportion equation
1,381,430.07 : 1,892,566.08 = 1,329,655.47 : x - Step 2: Convert to fraction form
1,381,430.07/1,892,566.08 = 1,329,655.47/x - Step 3: Cross multiply
1,381,430.07x = 1,892,566.08 × 1,329,655.47 - Step 4: Simplify right side
1,381,430.07x = 2,516,460,840,608.46 - Step 5: Solve for x
x = 2,516,460,840,608.46/1,381,430.07 - Step 6: Final answer
x = 1,821,634.62
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Why These Related Problems?
These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.