Finding the Fourth Proportional to 838,871.64, 1,258,001.28 and 306,235.08
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Solution
The fourth proportional to 838,871.64, 1,258,001.28 and 306,235.08 is: 459,240.85
Step by Step Solution
- Step 1: Write the proportion equation
838,871.64 : 1,258,001.28 = 306,235.08 : x - Step 2: Convert to fraction form
838,871.64/1,258,001.28 = 306,235.08/x - Step 3: Cross multiply
838,871.64x = 1,258,001.28 × 306,235.08 - Step 4: Simplify right side
838,871.64x = 385,244,122,620.90 - Step 5: Solve for x
x = 385,244,122,620.90/838,871.64 - Step 6: Final answer
x = 459,240.85
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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.