Finding the Fourth Proportional to 1,243,403.95, 1,865,105.83 and 344,845.68
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Solution
The fourth proportional to 1,243,403.95, 1,865,105.83 and 344,845.68 is: 517,268.49
Step by Step Solution
- Step 1: Write the proportion equation
1,243,403.95 : 1,865,105.83 = 344,845.68 : x - Step 2: Convert to fraction form
1,243,403.95/1,865,105.83 = 344,845.68/x - Step 3: Cross multiply
1,243,403.95x = 1,865,105.83 × 344,845.68 - Step 4: Simplify right side
1,243,403.95x = 643,173,688,218.32 - Step 5: Solve for x
x = 643,173,688,218.32/1,243,403.95 - Step 6: Final answer
x = 517,268.49
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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.