Finding the Fourth Proportional to 1,430,887.95, 1,974,194.78 and 857,718.99
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Solution
The fourth proportional to 1,430,887.95, 1,974,194.78 and 857,718.99 is: 1,183,394.09
Step by Step Solution
- Step 1: Write the proportion equation
1,430,887.95 : 1,974,194.78 = 857,718.99 : x - Step 2: Convert to fraction form
1,430,887.95/1,974,194.78 = 857,718.99/x - Step 3: Cross multiply
1,430,887.95x = 1,974,194.78 × 857,718.99 - Step 4: Simplify right side
1,430,887.95x = 1,693,304,348,476.28 - Step 5: Solve for x
x = 1,693,304,348,476.28/1,430,887.95 - Step 6: Final answer
x = 1,183,394.09
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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.