Finding the Fourth Proportional to 1,261,759.84, 1,892,938.08 and 408,830.08
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Solution
The fourth proportional to 1,261,759.84, 1,892,938.08 and 408,830.08 is: 613,341.78
Step by Step Solution
- Step 1: Write the proportion equation
1,261,759.84 : 1,892,938.08 = 408,830.08 : x - Step 2: Convert to fraction form
1,261,759.84/1,892,938.08 = 408,830.08/x - Step 3: Cross multiply
1,261,759.84x = 1,892,938.08 × 408,830.08 - Step 4: Simplify right side
1,261,759.84x = 773,890,026,681.45 - Step 5: Solve for x
x = 773,890,026,681.45/1,261,759.84 - Step 6: Final answer
x = 613,341.78
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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.