Finding the Fourth Proportional to 840,707.67, 1,261,048.14 and 391,177.11
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Solution
The fourth proportional to 840,707.67, 1,261,048.14 and 391,177.11 is: 586,759.45
Step by Step Solution
- Step 1: Write the proportion equation
840,707.67 : 1,261,048.14 = 391,177.11 : x - Step 2: Convert to fraction form
840,707.67/1,261,048.14 = 391,177.11/x - Step 3: Cross multiply
840,707.67x = 1,261,048.14 × 391,177.11 - Step 4: Simplify right side
840,707.67x = 493,293,166,976.08 - Step 5: Solve for x
x = 493,293,166,976.08/840,707.67 - Step 6: Final answer
x = 586,759.45
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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.