Finding the Fourth Proportional to 1,087,123.12, 1,499,988.36 and 657,394.24
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Solution
The fourth proportional to 1,087,123.12, 1,499,988.36 and 657,394.24 is: 907,057.99
Step by Step Solution
- Step 1: Write the proportion equation
1,087,123.12 : 1,499,988.36 = 657,394.24 : x - Step 2: Convert to fraction form
1,087,123.12/1,499,988.36 = 657,394.24/x - Step 3: Cross multiply
1,087,123.12x = 1,499,988.36 × 657,394.24 - Step 4: Simplify right side
1,087,123.12x = 986,083,707,931.05 - Step 5: Solve for x
x = 986,083,707,931.05/1,087,123.12 - Step 6: Final answer
x = 907,057.99
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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.