Finding the Fourth Proportional to 972,412.58, 1,341,996.72 and 542,776.70
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Solution
The fourth proportional to 972,412.58, 1,341,996.72 and 542,776.70 is: 749,069.44
Step by Step Solution
- Step 1: Write the proportion equation
972,412.58 : 1,341,996.72 = 542,776.70 : x - Step 2: Convert to fraction form
972,412.58/1,341,996.72 = 542,776.70/x - Step 3: Cross multiply
972,412.58x = 1,341,996.72 × 542,776.70 - Step 4: Simplify right side
972,412.58x = 728,404,551,092.42 - Step 5: Solve for x
x = 728,404,551,092.42/972,412.58 - Step 6: Final answer
x = 749,069.44
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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.