Finding the Fourth Proportional to 1,122,121.16, 1,685,673.11 and 695,972.06
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Solution
The fourth proportional to 1,122,121.16, 1,685,673.11 and 695,972.06 is: 1,045,503.31
Step by Step Solution
- Step 1: Write the proportion equation
1,122,121.16 : 1,685,673.11 = 695,972.06 : x - Step 2: Convert to fraction form
1,122,121.16/1,685,673.11 = 695,972.06/x - Step 3: Cross multiply
1,122,121.16x = 1,685,673.11 × 695,972.06 - Step 4: Simplify right side
1,122,121.16x = 1,173,181,386,486.15 - Step 5: Solve for x
x = 1,173,181,386,486.15/1,122,121.16 - Step 6: Final answer
x = 1,045,503.31
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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.