Finding the Fourth Proportional to 988,972.24, 1,364,552.76 and 667,279.12
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Solution
The fourth proportional to 988,972.24, 1,364,552.76 and 667,279.12 is: 920,690.72
Step by Step Solution
- Step 1: Write the proportion equation
988,972.24 : 1,364,552.76 = 667,279.12 : x - Step 2: Convert to fraction form
988,972.24/1,364,552.76 = 667,279.12/x - Step 3: Cross multiply
988,972.24x = 1,364,552.76 × 667,279.12 - Step 4: Simplify right side
988,972.24x = 910,537,564,886.37 - Step 5: Solve for x
x = 910,537,564,886.37/988,972.24 - Step 6: Final answer
x = 920,690.72
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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.