Finding the Fourth Proportional to 847,058.62, 1,270,318.48 and 278,308.62
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Solution
The fourth proportional to 847,058.62, 1,270,318.48 and 278,308.62 is: 417,374.40
Step by Step Solution
- Step 1: Write the proportion equation
847,058.62 : 1,270,318.48 = 278,308.62 : x - Step 2: Convert to fraction form
847,058.62/1,270,318.48 = 278,308.62/x - Step 3: Cross multiply
847,058.62x = 1,270,318.48 × 278,308.62 - Step 4: Simplify right side
847,058.62x = 353,540,583,129.30 - Step 5: Solve for x
x = 353,540,583,129.30/847,058.62 - Step 6: Final answer
x = 417,374.40
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1.5x scale
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.