Finding the Fourth Proportional to 1,141,403.79, 1,712,218.99 and 421,934.05
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Solution
The fourth proportional to 1,141,403.79, 1,712,218.99 and 421,934.05 is: 632,942.96
Step by Step Solution
- Step 1: Write the proportion equation
1,141,403.79 : 1,712,218.99 = 421,934.05 : x - Step 2: Convert to fraction form
1,141,403.79/1,712,218.99 = 421,934.05/x - Step 3: Cross multiply
1,141,403.79x = 1,712,218.99 × 421,934.05 - Step 4: Simplify right side
1,141,403.79x = 722,443,492,937.61 - Step 5: Solve for x
x = 722,443,492,937.61/1,141,403.79 - Step 6: Final answer
x = 632,942.96
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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.