Finding the Fourth Proportional to 462,428.36, 638,149.29 and 258,479.06
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Solution
The fourth proportional to 462,428.36, 638,149.29 and 258,479.06 is: 356,700.07
Step by Step Solution
- Step 1: Write the proportion equation
462,428.36 : 638,149.29 = 258,479.06 : x - Step 2: Convert to fraction form
462,428.36/638,149.29 = 258,479.06/x - Step 3: Cross multiply
462,428.36x = 638,149.29 × 258,479.06 - Step 4: Simplify right side
462,428.36x = 164,948,228,618.87 - Step 5: Solve for x
x = 164,948,228,618.87/462,428.36 - Step 6: Final answer
x = 356,700.07
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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.