Finding the Fourth Proportional to 1,216,663.36, 1,679,006.24 and 672,835.68
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Solution
The fourth proportional to 1,216,663.36, 1,679,006.24 and 672,835.68 is: 928,519.21
Step by Step Solution
- Step 1: Write the proportion equation
1,216,663.36 : 1,679,006.24 = 672,835.68 : x - Step 2: Convert to fraction form
1,216,663.36/1,679,006.24 = 672,835.68/x - Step 3: Cross multiply
1,216,663.36x = 1,679,006.24 × 672,835.68 - Step 4: Simplify right side
1,216,663.36x = 1,129,695,305,214.64 - Step 5: Solve for x
x = 1,129,695,305,214.64/1,216,663.36 - Step 6: Final answer
x = 928,519.21
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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.