Finding the Fourth Proportional to 1,012,376.63, 1,397,108.90 and 559,696.79
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Solution
The fourth proportional to 1,012,376.63, 1,397,108.90 and 559,696.79 is: 772,397.68
Step by Step Solution
- Step 1: Write the proportion equation
1,012,376.63 : 1,397,108.90 = 559,696.79 : x - Step 2: Convert to fraction form
1,012,376.63/1,397,108.90 = 559,696.79/x - Step 3: Cross multiply
1,012,376.63x = 1,397,108.90 × 559,696.79 - Step 4: Simplify right side
1,012,376.63x = 781,957,361,024.13 - Step 5: Solve for x
x = 781,957,361,024.13/1,012,376.63 - Step 6: Final answer
x = 772,397.68
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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.