Finding the Fourth Proportional to 981,345.34, 1,471,415.14 and 381,607.41
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Solution
The fourth proportional to 981,345.34, 1,471,415.14 and 381,607.41 is: 572,176.68
Step by Step Solution
- Step 1: Write the proportion equation
981,345.34 : 1,471,415.14 = 381,607.41 : x - Step 2: Convert to fraction form
981,345.34/1,471,415.14 = 381,607.41/x - Step 3: Cross multiply
981,345.34x = 1,471,415.14 × 381,607.41 - Step 4: Simplify right side
981,345.34x = 561,502,918,021.30 - Step 5: Solve for x
x = 561,502,918,021.30/981,345.34 - Step 6: Final answer
x = 572,176.68
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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.