Finding the Fourth Proportional to 838,635.08, 1,257,963.55 and 239,615.78
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Solution
The fourth proportional to 838,635.08, 1,257,963.55 and 239,615.78 is: 359,426.79
Step by Step Solution
- Step 1: Write the proportion equation
838,635.08 : 1,257,963.55 = 239,615.78 : x - Step 2: Convert to fraction form
838,635.08/1,257,963.55 = 239,615.78/x - Step 3: Cross multiply
838,635.08x = 1,257,963.55 × 239,615.78 - Step 4: Simplify right side
838,635.08x = 301,427,910,355.96 - Step 5: Solve for x
x = 301,427,910,355.96/838,635.08 - Step 6: Final answer
x = 359,426.79
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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.