Finding the Fourth Proportional to 653,731.36, 979,689.84 and 297,875.68
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Solution
The fourth proportional to 653,731.36, 979,689.84 and 297,875.68 is: 446,400.15
Step by Step Solution
- Step 1: Write the proportion equation
653,731.36 : 979,689.84 = 297,875.68 : x - Step 2: Convert to fraction form
653,731.36/979,689.84 = 297,875.68/x - Step 3: Cross multiply
653,731.36x = 979,689.84 × 297,875.68 - Step 4: Simplify right side
653,731.36x = 291,825,777,279.09 - Step 5: Solve for x
x = 291,825,777,279.09/653,731.36 - Step 6: Final answer
x = 446,400.15
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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.