Finding the Fourth Proportional to 1,358,135.78, 1,874,117.68 and 785,212.88
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Solution
The fourth proportional to 1,358,135.78, 1,874,117.68 and 785,212.88 is: 1,083,530.35
Step by Step Solution
- Step 1: Write the proportion equation
1,358,135.78 : 1,874,117.68 = 785,212.88 : x - Step 2: Convert to fraction form
1,358,135.78/1,874,117.68 = 785,212.88/x - Step 3: Cross multiply
1,358,135.78x = 1,874,117.68 × 785,212.88 - Step 4: Simplify right side
1,358,135.78x = 1,471,581,329,638.10 - Step 5: Solve for x
x = 1,471,581,329,638.10/1,358,135.78 - Step 6: Final answer
x = 1,083,530.35
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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.