Finding the Fourth Proportional to 638,345.44, 880,956.12 and 351,864.88
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Solution
The fourth proportional to 638,345.44, 880,956.12 and 351,864.88 is: 485,595.26
Step by Step Solution
- Step 1: Write the proportion equation
638,345.44 : 880,956.12 = 351,864.88 : x - Step 2: Convert to fraction form
638,345.44/880,956.12 = 351,864.88/x - Step 3: Cross multiply
638,345.44x = 880,956.12 × 351,864.88 - Step 4: Simplify right side
638,345.44x = 309,977,519,449.07 - Step 5: Solve for x
x = 309,977,519,449.07/638,345.44 - Step 6: Final answer
x = 485,595.26
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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.