Finding the Fourth Proportional to 644,779.68, 967,486.32 and 290,044.32
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Solution
The fourth proportional to 644,779.68, 967,486.32 and 290,044.32 is: 435,208.99
Step by Step Solution
- Step 1: Write the proportion equation
644,779.68 : 967,486.32 = 290,044.32 : x - Step 2: Convert to fraction form
644,779.68/967,486.32 = 290,044.32/x - Step 3: Cross multiply
644,779.68x = 967,486.32 × 290,044.32 - Step 4: Simplify right side
644,779.68x = 280,613,911,793.70 - Step 5: Solve for x
x = 280,613,911,793.70/644,779.68 - Step 6: Final answer
x = 435,208.99
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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.