Finding the Fourth Proportional to 698,745.21, 1,048,339.35 and 249,456.45
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Solution
The fourth proportional to 698,745.21, 1,048,339.35 and 249,456.45 is: 374,263.76
Step by Step Solution
- Step 1: Write the proportion equation
698,745.21 : 1,048,339.35 = 249,456.45 : x - Step 2: Convert to fraction form
698,745.21/1,048,339.35 = 249,456.45/x - Step 3: Cross multiply
698,745.21x = 1,048,339.35 × 249,456.45 - Step 4: Simplify right side
698,745.21x = 261,515,012,646.31 - Step 5: Solve for x
x = 261,515,012,646.31/698,745.21 - Step 6: Final answer
x = 374,263.76
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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.