Finding the Fourth Proportional to 771,677.68, 1,064,732.16 and 449,194
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Solution
The fourth proportional to 771,677.68, 1,064,732.16 and 449,194 is: 619,781.17
Step by Step Solution
- Step 1: Write the proportion equation
771,677.68 : 1,064,732.16 = 449,194 : x - Step 2: Convert to fraction form
771,677.68/1,064,732.16 = 449,194/x - Step 3: Cross multiply
771,677.68x = 1,064,732.16 × 449,194 - Step 4: Simplify right side
771,677.68x = 478,271,297,879.04 - Step 5: Solve for x
x = 478,271,297,879.04/771,677.68 - Step 6: Final answer
x = 619,781.17
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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.