Finding the Fourth Proportional to 1,125,640.85, 1,688,486.18 and 406,040.09
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Solution
The fourth proportional to 1,125,640.85, 1,688,486.18 and 406,040.09 is: 609,069.11
Step by Step Solution
- Step 1: Write the proportion equation
1,125,640.85 : 1,688,486.18 = 406,040.09 : x - Step 2: Convert to fraction form
1,125,640.85/1,688,486.18 = 406,040.09/x - Step 3: Cross multiply
1,125,640.85x = 1,688,486.18 × 406,040.09 - Step 4: Simplify right side
1,125,640.85x = 685,593,070,018.33 - Step 5: Solve for x
x = 685,593,070,018.33/1,125,640.85 - Step 6: Final answer
x = 609,069.11
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.