Finding the Fourth Proportional to 718,345.26, 991,323.36 and 396,068.13
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Solution
The fourth proportional to 718,345.26, 991,323.36 and 396,068.13 is: 546,577.82
Step by Step Solution
- Step 1: Write the proportion equation
718,345.26 : 991,323.36 = 396,068.13 : x - Step 2: Convert to fraction form
718,345.26/991,323.36 = 396,068.13/x - Step 3: Cross multiply
718,345.26x = 991,323.36 × 396,068.13 - Step 4: Simplify right side
718,345.26x = 392,631,589,420.52 - Step 5: Solve for x
x = 392,631,589,420.52/718,345.26 - Step 6: Final answer
x = 546,577.82
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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.