Finding the Fourth Proportional to 1,000,959.12, 1,501,438.68 and 253,005.12
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Solution
The fourth proportional to 1,000,959.12, 1,501,438.68 and 253,005.12 is: 379,507.68
Step by Step Solution
- Step 1: Write the proportion equation
1,000,959.12 : 1,501,438.68 = 253,005.12 : x - Step 2: Convert to fraction form
1,000,959.12/1,501,438.68 = 253,005.12/x - Step 3: Cross multiply
1,000,959.12x = 1,501,438.68 × 253,005.12 - Step 4: Simplify right side
1,000,959.12x = 379,871,673,406.04 - Step 5: Solve for x
x = 379,871,673,406.04/1,000,959.12 - Step 6: Final answer
x = 379,507.68
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Double scale
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Similar ratio
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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.