Finding the Fourth Proportional to 692,021.08, 954,989.22 and 390,215.08
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Solution
The fourth proportional to 692,021.08, 954,989.22 and 390,215.08 is: 538,496.88
Step by Step Solution
- Step 1: Write the proportion equation
692,021.08 : 954,989.22 = 390,215.08 : x - Step 2: Convert to fraction form
692,021.08/954,989.22 = 390,215.08/x - Step 3: Cross multiply
692,021.08x = 954,989.22 × 390,215.08 - Step 4: Simplify right side
692,021.08x = 372,651,194,881.44 - Step 5: Solve for x
x = 372,651,194,881.44/692,021.08 - Step 6: Final answer
x = 538,496.88
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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.