Finding the Fourth Proportional to 658,261.13, 908,400.35 and 356,455.13
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Solution
The fourth proportional to 658,261.13, 908,400.35 and 356,455.13 is: 491,908.07
Step by Step Solution
- Step 1: Write the proportion equation
658,261.13 : 908,400.35 = 356,455.13 : x - Step 2: Convert to fraction form
658,261.13/908,400.35 = 356,455.13/x - Step 3: Cross multiply
658,261.13x = 908,400.35 × 356,455.13 - Step 4: Simplify right side
658,261.13x = 323,803,961,200.43 - Step 5: Solve for x
x = 323,803,961,200.43/658,261.13 - Step 6: Final answer
x = 491,908.07
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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.