Finding the Fourth Proportional to 637,143.42, 879,241.26 and 346,760.79
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Solution
The fourth proportional to 637,143.42, 879,241.26 and 346,760.79 is: 478,520.82
Step by Step Solution
- Step 1: Write the proportion equation
637,143.42 : 879,241.26 = 346,760.79 : x - Step 2: Convert to fraction form
637,143.42/879,241.26 = 346,760.79/x - Step 3: Cross multiply
637,143.42x = 879,241.26 × 346,760.79 - Step 4: Simplify right side
637,143.42x = 304,886,393,918.20 - Step 5: Solve for x
x = 304,886,393,918.20/637,143.42 - Step 6: Final answer
x = 478,520.82
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1.5x scale
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.