Finding the Fourth Proportional to 1,090,763.93, 1,636,893.23 and 380,791.95
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Solution
The fourth proportional to 1,090,763.93, 1,636,893.23 and 380,791.95 is: 571,448.82
Step by Step Solution
- Step 1: Write the proportion equation
1,090,763.93 : 1,636,893.23 = 380,791.95 : x - Step 2: Convert to fraction form
1,090,763.93/1,636,893.23 = 380,791.95/x - Step 3: Cross multiply
1,090,763.93x = 1,636,893.23 × 380,791.95 - Step 4: Simplify right side
1,090,763.93x = 623,315,763,089.54 - Step 5: Solve for x
x = 623,315,763,089.54/1,090,763.93 - Step 6: Final answer
x = 571,448.82
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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.