Finding the Fourth Proportional to 1,316,865.48, 1,817,421.75 and 743,942.49
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Solution
The fourth proportional to 1,316,865.48, 1,817,421.75 and 743,942.49 is: 1,026,723.90
Step by Step Solution
- Step 1: Write the proportion equation
1,316,865.48 : 1,817,421.75 = 743,942.49 : x - Step 2: Convert to fraction form
1,316,865.48/1,817,421.75 = 743,942.49/x - Step 3: Cross multiply
1,316,865.48x = 1,817,421.75 × 743,942.49 - Step 4: Simplify right side
1,316,865.48x = 1,352,057,262,075.16 - Step 5: Solve for x
x = 1,352,057,262,075.16/1,316,865.48 - Step 6: Final answer
x = 1,026,723.90
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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.