Finding the Fourth Proportional to 913,865.68, 1,261,134.48 and 511,457.68
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Solution
The fourth proportional to 913,865.68, 1,261,134.48 and 511,457.68 is: 705,811.51
Step by Step Solution
- Step 1: Write the proportion equation
913,865.68 : 1,261,134.48 = 511,457.68 : x - Step 2: Convert to fraction form
913,865.68/1,261,134.48 = 511,457.68/x - Step 3: Cross multiply
913,865.68x = 1,261,134.48 × 511,457.68 - Step 4: Simplify right side
913,865.68x = 645,016,915,308.81 - Step 5: Solve for x
x = 645,016,915,308.81/913,865.68 - Step 6: Final answer
x = 705,811.51
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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.