Finding the Fourth Proportional to 692,539.86, 1,039,138.80 and 479,635.44
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Solution
The fourth proportional to 692,539.86, 1,039,138.80 and 479,635.44 is: 719,681.02
Step by Step Solution
- Step 1: Write the proportion equation
692,539.86 : 1,039,138.80 = 479,635.44 : x - Step 2: Convert to fraction form
692,539.86/1,039,138.80 = 479,635.44/x - Step 3: Cross multiply
692,539.86x = 1,039,138.80 × 479,635.44 - Step 4: Simplify right side
692,539.86x = 498,407,795,559.07 - Step 5: Solve for x
x = 498,407,795,559.07/692,539.86 - Step 6: Final answer
x = 719,681.02
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.