Finding the Fourth Proportional to 913,983.21, 1,370,079.97 and 381,656.48
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Solution
The fourth proportional to 913,983.21, 1,370,079.97 and 381,656.48 is: 572,111.05
Step by Step Solution
- Step 1: Write the proportion equation
913,983.21 : 1,370,079.97 = 381,656.48 : x - Step 2: Convert to fraction form
913,983.21/1,370,079.97 = 381,656.48/x - Step 3: Cross multiply
913,983.21x = 1,370,079.97 × 381,656.48 - Step 4: Simplify right side
913,983.21x = 522,899,890,864.17 - Step 5: Solve for x
x = 522,899,890,864.17/913,983.21 - Step 6: Final answer
x = 572,111.05
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.