Finding the Fourth Proportional to 2,147,952.78, 2,963,437.20 and 1,331,862.66
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Solution
The fourth proportional to 2,147,952.78, 2,963,437.20 and 1,331,862.66 is: 1,837,513.09
Step by Step Solution
- Step 1: Write the proportion equation
2,147,952.78 : 2,963,437.20 = 1,331,862.66 : x - Step 2: Convert to fraction form
2,147,952.78/2,963,437.20 = 1,331,862.66/x - Step 3: Cross multiply
2,147,952.78x = 2,963,437.20 × 1,331,862.66 - Step 4: Simplify right side
2,147,952.78x = 3,946,891,351,934.95 - Step 5: Solve for x
x = 3,946,891,351,934.95/2,147,952.78 - Step 6: Final answer
x = 1,837,513.09
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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.