Finding the Fourth Proportional to 830,509.28, 1,146,102.72 and 448,536.08
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Solution
The fourth proportional to 830,509.28, 1,146,102.72 and 448,536.08 is: 618,979.74
Step by Step Solution
- Step 1: Write the proportion equation
830,509.28 : 1,146,102.72 = 448,536.08 : x - Step 2: Convert to fraction form
830,509.28/1,146,102.72 = 448,536.08/x - Step 3: Cross multiply
830,509.28x = 1,146,102.72 × 448,536.08 - Step 4: Simplify right side
830,509.28x = 514,068,421,306.14 - Step 5: Solve for x
x = 514,068,421,306.14/830,509.28 - Step 6: Final answer
x = 618,979.74
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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.