Finding the Fourth Proportional to 853,355.18, 1,280,032.36 and 254,301.05
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Solution
The fourth proportional to 853,355.18, 1,280,032.36 and 254,301.05 is: 381,451.45
Step by Step Solution
- Step 1: Write the proportion equation
853,355.18 : 1,280,032.36 = 254,301.05 : x - Step 2: Convert to fraction form
853,355.18/1,280,032.36 = 254,301.05/x - Step 3: Cross multiply
853,355.18x = 1,280,032.36 × 254,301.05 - Step 4: Simplify right side
853,355.18x = 325,513,573,181.98 - Step 5: Solve for x
x = 325,513,573,181.98/853,355.18 - Step 6: Final answer
x = 381,451.45
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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.