Finding the Fourth Proportional to 840,302.12, 1,259,208.30 and 691,599.08
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Solution
The fourth proportional to 840,302.12, 1,259,208.30 and 691,599.08 is: 1,036,374.04
Step by Step Solution
- Step 1: Write the proportion equation
840,302.12 : 1,259,208.30 = 691,599.08 : x - Step 2: Convert to fraction form
840,302.12/1,259,208.30 = 691,599.08/x - Step 3: Cross multiply
840,302.12x = 1,259,208.30 × 691,599.08 - Step 4: Simplify right side
840,302.12x = 870,867,301,808.36 - Step 5: Solve for x
x = 870,867,301,808.36/840,302.12 - Step 6: Final answer
x = 1,036,374.04
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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.