Finding the Fourth Proportional to 851,038.68, 1,276,590.42 and 318,503.64
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Solution
The fourth proportional to 851,038.68, 1,276,590.42 and 318,503.64 is: 477,767.59
Step by Step Solution
- Step 1: Write the proportion equation
851,038.68 : 1,276,590.42 = 318,503.64 : x - Step 2: Convert to fraction form
851,038.68/1,276,590.42 = 318,503.64/x - Step 3: Cross multiply
851,038.68x = 1,276,590.42 × 318,503.64 - Step 4: Simplify right side
851,038.68x = 406,598,695,559.13 - Step 5: Solve for x
x = 406,598,695,559.13/851,038.68 - Step 6: Final answer
x = 477,767.59
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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.