Finding the Fourth Proportional to 776,660.68, 1,165,123.86 and 355,972.60
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Solution
The fourth proportional to 776,660.68, 1,165,123.86 and 355,972.60 is: 534,019.79
Step by Step Solution
- Step 1: Write the proportion equation
776,660.68 : 1,165,123.86 = 355,972.60 : x - Step 2: Convert to fraction form
776,660.68/1,165,123.86 = 355,972.60/x - Step 3: Cross multiply
776,660.68x = 1,165,123.86 × 355,972.60 - Step 4: Simplify right side
776,660.68x = 414,752,169,766.24 - Step 5: Solve for x
x = 414,752,169,766.24/776,660.68 - Step 6: Final answer
x = 534,019.79
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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.