Finding the Fourth Proportional to 520,764.44, 718,691.10 and 291,397.28
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Solution
The fourth proportional to 520,764.44, 718,691.10 and 291,397.28 is: 402,148.49
Step by Step Solution
- Step 1: Write the proportion equation
520,764.44 : 718,691.10 = 291,397.28 : x - Step 2: Convert to fraction form
520,764.44/718,691.10 = 291,397.28/x - Step 3: Cross multiply
520,764.44x = 718,691.10 × 291,397.28 - Step 4: Simplify right side
520,764.44x = 209,424,631,700.21 - Step 5: Solve for x
x = 209,424,631,700.21/520,764.44 - Step 6: Final answer
x = 402,148.49
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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.