Finding the Fourth Proportional to 919,485.79, 1,268,870.52 and 532,317.62
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Solution
The fourth proportional to 919,485.79, 1,268,870.52 and 532,317.62 is: 734,586.81
Step by Step Solution
- Step 1: Write the proportion equation
919,485.79 : 1,268,870.52 = 532,317.62 : x - Step 2: Convert to fraction form
919,485.79/1,268,870.52 = 532,317.62/x - Step 3: Cross multiply
919,485.79x = 1,268,870.52 × 532,317.62 - Step 4: Simplify right side
919,485.79x = 675,442,126,288.62 - Step 5: Solve for x
x = 675,442,126,288.62/919,485.79 - Step 6: Final answer
x = 734,586.81
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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.