Finding the Fourth Proportional to 1,108,959.99, 1,530,250.15 and 818,726.06
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Solution
The fourth proportional to 1,108,959.99, 1,530,250.15 and 818,726.06 is: 1,129,757.33
Step by Step Solution
- Step 1: Write the proportion equation
1,108,959.99 : 1,530,250.15 = 818,726.06 : x - Step 2: Convert to fraction form
1,108,959.99/1,530,250.15 = 818,726.06/x - Step 3: Cross multiply
1,108,959.99x = 1,530,250.15 × 818,726.06 - Step 4: Simplify right side
1,108,959.99x = 1,252,855,676,123.91 - Step 5: Solve for x
x = 1,252,855,676,123.91/1,108,959.99 - Step 6: Final answer
x = 1,129,757.33
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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.