Finding the Fourth Proportional to 687,064.48, 948,154.71 and 381,160.79
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Solution
The fourth proportional to 687,064.48, 948,154.71 and 381,160.79 is: 526,005.07
Step by Step Solution
- Step 1: Write the proportion equation
687,064.48 : 948,154.71 = 381,160.79 : x - Step 2: Convert to fraction form
687,064.48/948,154.71 = 381,160.79/x - Step 3: Cross multiply
687,064.48x = 948,154.71 × 381,160.79 - Step 4: Simplify right side
687,064.48x = 361,399,398,549.98 - Step 5: Solve for x
x = 361,399,398,549.98/687,064.48 - Step 6: Final answer
x = 526,005.07
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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.