Finding the Fourth Proportional to 1,121,188.28, 1,547,275.91 and 637,740.99
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Solution
The fourth proportional to 1,121,188.28, 1,547,275.91 and 637,740.99 is: 880,103.09
Step by Step Solution
- Step 1: Write the proportion equation
1,121,188.28 : 1,547,275.91 = 637,740.99 : x - Step 2: Convert to fraction form
1,121,188.28/1,547,275.91 = 637,740.99/x - Step 3: Cross multiply
1,121,188.28x = 1,547,275.91 × 637,740.99 - Step 4: Simplify right side
1,121,188.28x = 986,761,267,457.85 - Step 5: Solve for x
x = 986,761,267,457.85/1,121,188.28 - Step 6: Final answer
x = 880,103.09
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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.