Finding the Fourth Proportional to 426,785.08, 639,625.74 and 319,325.93
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Solution
The fourth proportional to 426,785.08, 639,625.74 and 319,325.93 is: 478,575.96
Step by Step Solution
- Step 1: Write the proportion equation
426,785.08 : 639,625.74 = 319,325.93 : x - Step 2: Convert to fraction form
426,785.08/639,625.74 = 319,325.93/x - Step 3: Cross multiply
426,785.08x = 639,625.74 × 319,325.93 - Step 4: Simplify right side
426,785.08x = 204,249,081,079.31 - Step 5: Solve for x
x = 204,249,081,079.31/426,785.08 - Step 6: Final answer
x = 478,575.96
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.