Finding the Fourth Proportional to 758,948.40, 1,138,276.80 and 226,486.80
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Solution
The fourth proportional to 758,948.40, 1,138,276.80 and 226,486.80 is: 339,686.69
Step by Step Solution
- Step 1: Write the proportion equation
758,948.40 : 1,138,276.80 = 226,486.80 : x - Step 2: Convert to fraction form
758,948.40/1,138,276.80 = 226,486.80/x - Step 3: Cross multiply
758,948.40x = 1,138,276.80 × 226,486.80 - Step 4: Simplify right side
758,948.40x = 257,804,669,946.24 - Step 5: Solve for x
x = 257,804,669,946.24/758,948.40 - Step 6: Final answer
x = 339,686.69
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1.5x scale
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.