Finding the Fourth Proportional to 915,130.96, 1,372,228.36 and 382,506.64
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Solution
The fourth proportional to 915,130.96, 1,372,228.36 and 382,506.64 is: 573,564.31
Step by Step Solution
- Step 1: Write the proportion equation
915,130.96 : 1,372,228.36 = 382,506.64 : x - Step 2: Convert to fraction form
915,130.96/1,372,228.36 = 382,506.64/x - Step 3: Cross multiply
915,130.96x = 1,372,228.36 × 382,506.64 - Step 4: Simplify right side
915,130.96x = 524,886,459,296.31 - Step 5: Solve for x
x = 524,886,459,296.31/915,130.96 - Step 6: Final answer
x = 573,564.31
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1.5x scale
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.