Finding the Fourth Proportional to 861,624.29, 1,291,837.93 and 381,590.51
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Solution
The fourth proportional to 861,624.29, 1,291,837.93 and 381,590.51 is: 572,120.70
Step by Step Solution
- Step 1: Write the proportion equation
861,624.29 : 1,291,837.93 = 381,590.51 : x - Step 2: Convert to fraction form
861,624.29/1,291,837.93 = 381,590.51/x - Step 3: Cross multiply
861,624.29x = 1,291,837.93 × 381,590.51 - Step 4: Simplify right side
861,624.29x = 492,953,094,546.04 - Step 5: Solve for x
x = 492,953,094,546.04/861,624.29 - Step 6: Final answer
x = 572,120.70
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.