Finding the Fourth Proportional to 745,076.54, 1,028,177.08 and 422,767.42
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Solution
The fourth proportional to 745,076.54, 1,028,177.08 and 422,767.42 is: 583,402.84
Step by Step Solution
- Step 1: Write the proportion equation
745,076.54 : 1,028,177.08 = 422,767.42 : x - Step 2: Convert to fraction form
745,076.54/1,028,177.08 = 422,767.42/x - Step 3: Cross multiply
745,076.54x = 1,028,177.08 × 422,767.42 - Step 4: Simplify right side
745,076.54x = 434,679,771,414.73 - Step 5: Solve for x
x = 434,679,771,414.73/745,076.54 - Step 6: Final answer
x = 583,402.84
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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.