Finding the Fourth Proportional to 718,148.06, 991,088.68 and 395,857.42
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Solution
The fourth proportional to 718,148.06, 991,088.68 and 395,857.42 is: 546,307.69
Step by Step Solution
- Step 1: Write the proportion equation
718,148.06 : 991,088.68 = 395,857.42 : x - Step 2: Convert to fraction form
718,148.06/991,088.68 = 395,857.42/x - Step 3: Cross multiply
718,148.06x = 991,088.68 × 395,857.42 - Step 4: Simplify right side
718,148.06x = 392,329,807,856.01 - Step 5: Solve for x
x = 392,329,807,856.01/718,148.06 - Step 6: Final answer
x = 546,307.69
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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.