Finding the Fourth Proportional to 503,992.48, 754,846.08 and 390,765.28
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Solution
The fourth proportional to 503,992.48, 754,846.08 and 390,765.28 is: 585,261.99
Step by Step Solution
- Step 1: Write the proportion equation
503,992.48 : 754,846.08 = 390,765.28 : x - Step 2: Convert to fraction form
503,992.48/754,846.08 = 390,765.28/x - Step 3: Cross multiply
503,992.48x = 754,846.08 × 390,765.28 - Step 4: Simplify right side
503,992.48x = 294,967,639,808.10 - Step 5: Solve for x
x = 294,967,639,808.10/503,992.48 - Step 6: Final answer
x = 585,261.99
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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.