Finding the Fourth Proportional to 891,745.20, 1,337,779.80 and 292,539.60
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Solution
The fourth proportional to 891,745.20, 1,337,779.80 and 292,539.60 is: 438,862.54
Step by Step Solution
- Step 1: Write the proportion equation
891,745.20 : 1,337,779.80 = 292,539.60 : x - Step 2: Convert to fraction form
891,745.20/1,337,779.80 = 292,539.60/x - Step 3: Cross multiply
891,745.20x = 1,337,779.80 × 292,539.60 - Step 4: Simplify right side
891,745.20x = 391,353,567,580.08 - Step 5: Solve for x
x = 391,353,567,580.08/891,745.20 - Step 6: Final answer
x = 438,862.54
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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.