Finding the Fourth Proportional to 646,552.53, 892,175.37 and 398,154.99
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Solution
The fourth proportional to 646,552.53, 892,175.37 and 398,154.99 is: 549,412.55
Step by Step Solution
- Step 1: Write the proportion equation
646,552.53 : 892,175.37 = 398,154.99 : x - Step 2: Convert to fraction form
646,552.53/892,175.37 = 398,154.99/x - Step 3: Cross multiply
646,552.53x = 892,175.37 × 398,154.99 - Step 4: Simplify right side
646,552.53x = 355,224,075,640.43 - Step 5: Solve for x
x = 355,224,075,640.43/646,552.53 - Step 6: Final answer
x = 549,412.55
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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.