Finding the Fourth Proportional to 854,115.75, 1,178,693.75 and 509,981.75
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Solution
The fourth proportional to 854,115.75, 1,178,693.75 and 509,981.75 is: 703,783.17
Step by Step Solution
- Step 1: Write the proportion equation
854,115.75 : 1,178,693.75 = 509,981.75 : x - Step 2: Convert to fraction form
854,115.75/1,178,693.75 = 509,981.75/x - Step 3: Cross multiply
854,115.75x = 1,178,693.75 × 509,981.75 - Step 4: Simplify right side
854,115.75x = 601,112,292,895.69 - Step 5: Solve for x
x = 601,112,292,895.69/854,115.75 - Step 6: Final answer
x = 703,783.17
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.