Finding the Fourth Proportional to 776,171.87, 1,071,115.55 and 436,640.12
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Solution
The fourth proportional to 776,171.87, 1,071,115.55 and 436,640.12 is: 602,562.45
Step by Step Solution
- Step 1: Write the proportion equation
776,171.87 : 1,071,115.55 = 436,640.12 : x - Step 2: Convert to fraction form
776,171.87/1,071,115.55 = 436,640.12/x - Step 3: Cross multiply
776,171.87x = 1,071,115.55 × 436,640.12 - Step 4: Simplify right side
776,171.87x = 467,692,020,401.17 - Step 5: Solve for x
x = 467,692,020,401.17/776,171.87 - Step 6: Final answer
x = 602,562.45
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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.