Finding the Fourth Proportional to 919,701.60, 1,269,229.68 and 517,293.60
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Solution
The fourth proportional to 919,701.60, 1,269,229.68 and 517,293.60 is: 713,888.49
Step by Step Solution
- Step 1: Write the proportion equation
919,701.60 : 1,269,229.68 = 517,293.60 : x - Step 2: Convert to fraction form
919,701.60/1,269,229.68 = 517,293.60/x - Step 3: Cross multiply
919,701.60x = 1,269,229.68 × 517,293.60 - Step 4: Simplify right side
919,701.60x = 656,564,390,394.05 - Step 5: Solve for x
x = 656,564,390,394.05/919,701.60 - Step 6: Final answer
x = 713,888.49
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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.