Finding the Fourth Proportional to 442,530.99, 663,779.40 and 126,987.90
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Solution
The fourth proportional to 442,530.99, 663,779.40 and 126,987.90 is: 190,476.95
Step by Step Solution
- Step 1: Write the proportion equation
442,530.99 : 663,779.40 = 126,987.90 : x - Step 2: Convert to fraction form
442,530.99/663,779.40 = 126,987.90/x - Step 3: Cross multiply
442,530.99x = 663,779.40 × 126,987.90 - Step 4: Simplify right side
442,530.99x = 84,291,952,069.26 - Step 5: Solve for x
x = 84,291,952,069.26/442,530.99 - Step 6: Final answer
x = 190,476.95
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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.