Finding the Fourth Proportional to 771,079.80, 1,064,089.98 and 431,548.05
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Solution
The fourth proportional to 771,079.80, 1,064,089.98 and 431,548.05 is: 595,536.23
Step by Step Solution
- Step 1: Write the proportion equation
771,079.80 : 1,064,089.98 = 431,548.05 : x - Step 2: Convert to fraction form
771,079.80/1,064,089.98 = 431,548.05/x - Step 3: Cross multiply
771,079.80x = 1,064,089.98 × 431,548.05 - Step 4: Simplify right side
771,079.80x = 459,205,955,893.54 - Step 5: Solve for x
x = 459,205,955,893.54/771,079.80 - Step 6: Final answer
x = 595,536.23
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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.