Finding the Fourth Proportional to 450,454.88, 620,913.12 and 354,810.08
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Solution
The fourth proportional to 450,454.88, 620,913.12 and 354,810.08 is: 489,075.03
Step by Step Solution
- Step 1: Write the proportion equation
450,454.88 : 620,913.12 = 354,810.08 : x - Step 2: Convert to fraction form
450,454.88/620,913.12 = 354,810.08/x - Step 3: Cross multiply
450,454.88x = 620,913.12 × 354,810.08 - Step 4: Simplify right side
450,454.88x = 220,306,233,780.25 - Step 5: Solve for x
x = 220,306,233,780.25/450,454.88 - Step 6: Final answer
x = 489,075.03
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.