Finding the Fourth Proportional to 963,979.68, 1,329,987.96 and 556,026.84
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Solution
The fourth proportional to 963,979.68, 1,329,987.96 and 556,026.84 is: 767,141.69
Step by Step Solution
- Step 1: Write the proportion equation
963,979.68 : 1,329,987.96 = 556,026.84 : x - Step 2: Convert to fraction form
963,979.68/1,329,987.96 = 556,026.84/x - Step 3: Cross multiply
963,979.68x = 1,329,987.96 × 556,026.84 - Step 4: Simplify right side
963,979.68x = 739,509,002,636.85 - Step 5: Solve for x
x = 739,509,002,636.85/963,979.68 - Step 6: Final answer
x = 767,141.69
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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.