Finding the Fourth Proportional to 539,620.90, 809,431.35 and 339,291.70
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Solution
The fourth proportional to 539,620.90, 809,431.35 and 339,291.70 is: 508,937.55
Step by Step Solution
- Step 1: Write the proportion equation
539,620.90 : 809,431.35 = 339,291.70 : x - Step 2: Convert to fraction form
539,620.90/809,431.35 = 339,291.70/x - Step 3: Cross multiply
539,620.90x = 809,431.35 × 339,291.70 - Step 4: Simplify right side
539,620.90x = 274,633,338,774.80 - Step 5: Solve for x
x = 274,633,338,774.80/539,620.90 - Step 6: Final answer
x = 508,937.55
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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.