Finding the Fourth Proportional to 763,679.28, 1,053,862.20 and 424,135.92
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Solution
The fourth proportional to 763,679.28, 1,053,862.20 and 424,135.92 is: 585,299.12
Step by Step Solution
- Step 1: Write the proportion equation
763,679.28 : 1,053,862.20 = 424,135.92 : x - Step 2: Convert to fraction form
763,679.28/1,053,862.20 = 424,135.92/x - Step 3: Cross multiply
763,679.28x = 1,053,862.20 × 424,135.92 - Step 4: Simplify right side
763,679.28x = 446,980,813,750.22 - Step 5: Solve for x
x = 446,980,813,750.22/763,679.28 - Step 6: Final answer
x = 585,299.12
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.