Finding the Fourth Proportional to 830,664.84, 1,146,317.30 and 448,691.63
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Solution
The fourth proportional to 830,664.84, 1,146,317.30 and 448,691.63 is: 619,194.34
Step by Step Solution
- Step 1: Write the proportion equation
830,664.84 : 1,146,317.30 = 448,691.63 : x - Step 2: Convert to fraction form
830,664.84/1,146,317.30 = 448,691.63/x - Step 3: Cross multiply
830,664.84x = 1,146,317.30 × 448,691.63 - Step 4: Simplify right side
830,664.84x = 514,342,969,859.15 - Step 5: Solve for x
x = 514,342,969,859.15/830,664.84 - Step 6: Final answer
x = 619,194.34
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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.