Finding the Fourth Proportional to 542,070.05, 748,036.49 and 312,636.95
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Solution
The fourth proportional to 542,070.05, 748,036.49 and 312,636.95 is: 431,427.35
Step by Step Solution
- Step 1: Write the proportion equation
542,070.05 : 748,036.49 = 312,636.95 : x - Step 2: Convert to fraction form
542,070.05/748,036.49 = 312,636.95/x - Step 3: Cross multiply
542,070.05x = 748,036.49 × 312,636.95 - Step 4: Simplify right side
542,070.05x = 233,863,841,418.94 - Step 5: Solve for x
x = 233,863,841,418.94/542,070.05 - Step 6: Final answer
x = 431,427.35
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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.