Finding the Fourth Proportional to 745,569.45, 1,118,354.18 and 664,699.05
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Solution
The fourth proportional to 745,569.45, 1,118,354.18 and 664,699.05 is: 997,048.58
Step by Step Solution
- Step 1: Write the proportion equation
745,569.45 : 1,118,354.18 = 664,699.05 : x - Step 2: Convert to fraction form
745,569.45/1,118,354.18 = 664,699.05/x - Step 3: Cross multiply
745,569.45x = 1,118,354.18 × 664,699.05 - Step 4: Simplify right side
745,569.45x = 743,368,957,686.03 - Step 5: Solve for x
x = 743,368,957,686.03/745,569.45 - Step 6: Final answer
x = 997,048.58
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.