Finding the Fourth Proportional to 913,683.79, 1,260,865.11 and 505,785.88
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Solution
The fourth proportional to 913,683.79, 1,260,865.11 and 505,785.88 is: 697,974.26
Step by Step Solution
- Step 1: Write the proportion equation
913,683.79 : 1,260,865.11 = 505,785.88 : x - Step 2: Convert to fraction form
913,683.79/1,260,865.11 = 505,785.88/x - Step 3: Cross multiply
913,683.79x = 1,260,865.11 × 505,785.88 - Step 4: Simplify right side
913,683.79x = 637,727,769,222.65 - Step 5: Solve for x
x = 637,727,769,222.65/913,683.79 - Step 6: Final answer
x = 697,974.26
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.