Finding the Fourth Proportional to 913,596.17, 1,260,765.10 and 505,726.13
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Solution
The fourth proportional to 913,596.17, 1,260,765.10 and 505,726.13 is: 697,903.39
Step by Step Solution
- Step 1: Write the proportion equation
913,596.17 : 1,260,765.10 = 505,726.13 : x - Step 2: Convert to fraction form
913,596.17/1,260,765.10 = 505,726.13/x - Step 3: Cross multiply
913,596.17x = 1,260,765.10 × 505,726.13 - Step 4: Simplify right side
913,596.17x = 637,601,858,646.13 - Step 5: Solve for x
x = 637,601,858,646.13/913,596.17 - Step 6: Final answer
x = 697,903.39
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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.