Finding the Fourth Proportional to 520,690.16, 718,705.18 and 302,950.05
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Solution
The fourth proportional to 520,690.16, 718,705.18 and 302,950.05 is: 418,159.95
Step by Step Solution
- Step 1: Write the proportion equation
520,690.16 : 718,705.18 = 302,950.05 : x - Step 2: Convert to fraction form
520,690.16/718,705.18 = 302,950.05/x - Step 3: Cross multiply
520,690.16x = 718,705.18 × 302,950.05 - Step 4: Simplify right side
520,690.16x = 217,731,769,458.88 - Step 5: Solve for x
x = 217,731,769,458.88/520,690.16 - Step 6: Final answer
x = 418,159.95
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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.