Finding the Fourth Proportional to 990,723.69, 1,367,232.51 and 555,159.42
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Solution
The fourth proportional to 990,723.69, 1,367,232.51 and 555,159.42 is: 766,138.95
Step by Step Solution
- Step 1: Write the proportion equation
990,723.69 : 1,367,232.51 = 555,159.42 : x - Step 2: Convert to fraction form
990,723.69/1,367,232.51 = 555,159.42/x - Step 3: Cross multiply
990,723.69x = 1,367,232.51 × 555,159.42 - Step 4: Simplify right side
990,723.69x = 759,032,007,256.74 - Step 5: Solve for x
x = 759,032,007,256.74/990,723.69 - Step 6: Final answer
x = 766,138.95
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.