Finding the Fourth Proportional to 390,486.84, 585,730.26 and 203,862.84
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Solution
The fourth proportional to 390,486.84, 585,730.26 and 203,862.84 is: 305,794.26
Step by Step Solution
- Step 1: Write the proportion equation
390,486.84 : 585,730.26 = 203,862.84 : x - Step 2: Convert to fraction form
390,486.84/585,730.26 = 203,862.84/x - Step 3: Cross multiply
390,486.84x = 585,730.26 × 203,862.84 - Step 4: Simplify right side
390,486.84x = 119,408,634,277.54 - Step 5: Solve for x
x = 119,408,634,277.54/390,486.84 - Step 6: Final answer
x = 305,794.26
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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.