Finding the Fourth Proportional to 539,911.44, 809,291.88 and 406,378.80
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Solution
The fourth proportional to 539,911.44, 809,291.88 and 406,378.80 is: 609,135.20
Step by Step Solution
- Step 1: Write the proportion equation
539,911.44 : 809,291.88 = 406,378.80 : x - Step 2: Convert to fraction form
539,911.44/809,291.88 = 406,378.80/x - Step 3: Cross multiply
539,911.44x = 809,291.88 × 406,378.80 - Step 4: Simplify right side
539,911.44x = 328,879,063,044.14 - Step 5: Solve for x
x = 328,879,063,044.14/539,911.44 - Step 6: Final answer
x = 609,135.20
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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.