Finding the Fourth Proportional to 748,328.75, 1,122,502.85 and 249,692.75
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Solution
The fourth proportional to 748,328.75, 1,122,502.85 and 249,692.75 is: 374,542.37
Step by Step Solution
- Step 1: Write the proportion equation
748,328.75 : 1,122,502.85 = 249,692.75 : x - Step 2: Convert to fraction form
748,328.75/1,122,502.85 = 249,692.75/x - Step 3: Cross multiply
748,328.75x = 1,122,502.85 × 249,692.75 - Step 4: Simplify right side
748,328.75x = 280,280,822,250.87 - Step 5: Solve for x
x = 280,280,822,250.87/748,328.75 - Step 6: Final answer
x = 374,542.37
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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.