Finding the Fourth Proportional to 840,736.64, 1,261,091.68 and 391,206.08
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Solution
The fourth proportional to 840,736.64, 1,261,091.68 and 391,206.08 is: 586,802.94
Step by Step Solution
- Step 1: Write the proportion equation
840,736.64 : 1,261,091.68 = 391,206.08 : x - Step 2: Convert to fraction form
840,736.64/1,261,091.68 = 391,206.08/x - Step 3: Cross multiply
840,736.64x = 1,261,091.68 × 391,206.08 - Step 4: Simplify right side
840,736.64x = 493,346,732,653.41 - Step 5: Solve for x
x = 493,346,732,653.41/840,736.64 - Step 6: Final answer
x = 586,802.94
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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.