Finding the Fourth Proportional to 734,520.07, 1,101,405.04 and 431,506.05
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Solution
The fourth proportional to 734,520.07, 1,101,405.04 and 431,506.05 is: 647,038.75
Step by Step Solution
- Step 1: Write the proportion equation
734,520.07 : 1,101,405.04 = 431,506.05 : x - Step 2: Convert to fraction form
734,520.07/1,101,405.04 = 431,506.05/x - Step 3: Cross multiply
734,520.07x = 1,101,405.04 × 431,506.05 - Step 4: Simplify right side
734,520.07x = 475,262,941,674.08 - Step 5: Solve for x
x = 475,262,941,674.08/734,520.07 - Step 6: Final answer
x = 647,038.75
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.