Finding the Fourth Proportional to 1,000,919.91, 1,381,270.20 and 542,038.08
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Solution
The fourth proportional to 1,000,919.91, 1,381,270.20 and 542,038.08 is: 748,012.94
Step by Step Solution
- Step 1: Write the proportion equation
1,000,919.91 : 1,381,270.20 = 542,038.08 : x - Step 2: Convert to fraction form
1,000,919.91/1,381,270.20 = 542,038.08/x - Step 3: Cross multiply
1,000,919.91x = 1,381,270.20 × 542,038.08 - Step 4: Simplify right side
1,000,919.91x = 748,701,047,169.22 - Step 5: Solve for x
x = 748,701,047,169.22/1,000,919.91 - Step 6: Final answer
x = 748,012.94
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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.