Finding the Fourth Proportional to 449,531.70, 619,774.92 and 320,617.14
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Solution
The fourth proportional to 449,531.70, 619,774.92 and 320,617.14 is: 442,038.82
Step by Step Solution
- Step 1: Write the proportion equation
449,531.70 : 619,774.92 = 320,617.14 : x - Step 2: Convert to fraction form
449,531.70/619,774.92 = 320,617.14/x - Step 3: Cross multiply
449,531.70x = 619,774.92 × 320,617.14 - Step 4: Simplify right side
449,531.70x = 198,710,462,294.13 - Step 5: Solve for x
x = 198,710,462,294.13/449,531.70 - Step 6: Final answer
x = 442,038.82
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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.