Finding the Fourth Proportional to 626,821.68, 865,090.42 and 368,686.30
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Solution
The fourth proportional to 626,821.68, 865,090.42 and 368,686.30 is: 508,832.09
Step by Step Solution
- Step 1: Write the proportion equation
626,821.68 : 865,090.42 = 368,686.30 : x - Step 2: Convert to fraction form
626,821.68/865,090.42 = 368,686.30/x - Step 3: Cross multiply
626,821.68x = 865,090.42 × 368,686.30 - Step 4: Simplify right side
626,821.68x = 318,946,986,115.25 - Step 5: Solve for x
x = 318,946,986,115.25/626,821.68 - Step 6: Final answer
x = 508,832.09
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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.