Finding the Fourth Proportional to 476,679.12, 715,018.04 and 121,693.12
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Solution
The fourth proportional to 476,679.12, 715,018.04 and 121,693.12 is: 182,539.52
Step by Step Solution
- Step 1: Write the proportion equation
476,679.12 : 715,018.04 = 121,693.12 : x - Step 2: Convert to fraction form
476,679.12/715,018.04 = 121,693.12/x - Step 3: Cross multiply
476,679.12x = 715,018.04 × 121,693.12 - Step 4: Simplify right side
476,679.12x = 87,012,776,143.88 - Step 5: Solve for x
x = 87,012,776,143.88/476,679.12 - Step 6: Final answer
x = 182,539.52
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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.