Finding the Fourth Proportional to 615,424.26, 848,615.95 and 400,165.14
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Solution
The fourth proportional to 615,424.26, 848,615.95 and 400,165.14 is: 551,792.55
Step by Step Solution
- Step 1: Write the proportion equation
615,424.26 : 848,615.95 = 400,165.14 : x - Step 2: Convert to fraction form
615,424.26/848,615.95 = 400,165.14/x - Step 3: Cross multiply
615,424.26x = 848,615.95 × 400,165.14 - Step 4: Simplify right side
615,424.26x = 339,586,520,437.98 - Step 5: Solve for x
x = 339,586,520,437.98/615,424.26 - Step 6: Final answer
x = 551,792.55
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1.5x scale
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.