Finding the Fourth Proportional to 520,467.66, 718,652.44 and 399,417.21
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Solution
The fourth proportional to 520,467.66, 718,652.44 and 399,417.21 is: 551,508.14
Step by Step Solution
- Step 1: Write the proportion equation
520,467.66 : 718,652.44 = 399,417.21 : x - Step 2: Convert to fraction form
520,467.66/718,652.44 = 399,417.21/x - Step 3: Cross multiply
520,467.66x = 718,652.44 × 399,417.21 - Step 4: Simplify right side
520,467.66x = 287,042,148,951.23 - Step 5: Solve for x
x = 287,042,148,951.23/520,467.66 - Step 6: Final answer
x = 551,508.14
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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.