Finding the Fourth Proportional to 646,132.08, 891,509.94 and 543,157.86
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Solution
The fourth proportional to 646,132.08, 891,509.94 and 543,157.86 is: 749,429.79
Step by Step Solution
- Step 1: Write the proportion equation
646,132.08 : 891,509.94 = 543,157.86 : x - Step 2: Convert to fraction form
646,132.08/891,509.94 = 543,157.86/x - Step 3: Cross multiply
646,132.08x = 891,509.94 × 543,157.86 - Step 4: Simplify right side
646,132.08x = 484,230,631,179.13 - Step 5: Solve for x
x = 484,230,631,179.13/646,132.08 - Step 6: Final answer
x = 749,429.79
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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.