Finding the Fourth Proportional to 811,030.28, 1,119,176.46 and 448,432.28
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Solution
The fourth proportional to 811,030.28, 1,119,176.46 and 448,432.28 is: 618,811.48
Step by Step Solution
- Step 1: Write the proportion equation
811,030.28 : 1,119,176.46 = 448,432.28 : x - Step 2: Convert to fraction form
811,030.28/1,119,176.46 = 448,432.28/x - Step 3: Cross multiply
811,030.28x = 1,119,176.46 × 448,432.28 - Step 4: Simplify right side
811,030.28x = 501,874,851,680.13 - Step 5: Solve for x
x = 501,874,851,680.13/811,030.28 - Step 6: Final answer
x = 618,811.48
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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.