Finding the Fourth Proportional to 380,302.08, 524,257.68 and 289,499.76
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Solution
The fourth proportional to 380,302.08, 524,257.68 and 289,499.76 is: 399,083.99
Step by Step Solution
- Step 1: Write the proportion equation
380,302.08 : 524,257.68 = 289,499.76 : x - Step 2: Convert to fraction form
380,302.08/524,257.68 = 289,499.76/x - Step 3: Cross multiply
380,302.08x = 524,257.68 × 289,499.76 - Step 4: Simplify right side
380,302.08x = 151,772,472,538.16 - Step 5: Solve for x
x = 151,772,472,538.16/380,302.08 - Step 6: Final answer
x = 399,083.99
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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.