Finding the Fourth Proportional to 406,970.08, 561,603.12 and 225,689.44
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Solution
The fourth proportional to 406,970.08, 561,603.12 and 225,689.44 is: 311,442.78
Step by Step Solution
- Step 1: Write the proportion equation
406,970.08 : 561,603.12 = 225,689.44 : x - Step 2: Convert to fraction form
406,970.08/561,603.12 = 225,689.44/x - Step 3: Cross multiply
406,970.08x = 561,603.12 × 225,689.44 - Step 4: Simplify right side
406,970.08x = 126,747,893,655.05 - Step 5: Solve for x
x = 126,747,893,655.05/406,970.08 - Step 6: Final answer
x = 311,442.78
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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.