Finding the Fourth Proportional to 1,721,981.76, 2,376,275.19 and 947,540.18
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Solution
The fourth proportional to 1,721,981.76, 2,376,275.19 and 947,540.18 is: 1,307,572.62
Step by Step Solution
- Step 1: Write the proportion equation
1,721,981.76 : 2,376,275.19 = 947,540.18 : x - Step 2: Convert to fraction form
1,721,981.76/2,376,275.19 = 947,540.18/x - Step 3: Cross multiply
1,721,981.76x = 2,376,275.19 × 947,540.18 - Step 4: Simplify right side
1,721,981.76x = 2,251,616,209,380.76 - Step 5: Solve for x
x = 2,251,616,209,380.76/1,721,981.76 - Step 6: Final answer
x = 1,307,572.62
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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.