Finding the Fourth Proportional to 1,415,538.78, 1,953,423.99 and 811,913.82
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Solution
The fourth proportional to 1,415,538.78, 1,953,423.99 and 811,913.82 is: 1,120,429.87
Step by Step Solution
- Step 1: Write the proportion equation
1,415,538.78 : 1,953,423.99 = 811,913.82 : x - Step 2: Convert to fraction form
1,415,538.78/1,953,423.99 = 811,913.82/x - Step 3: Cross multiply
1,415,538.78x = 1,953,423.99 × 811,913.82 - Step 4: Simplify right side
1,415,538.78x = 1,586,011,933,800.54 - Step 5: Solve for x
x = 1,586,011,933,800.54/1,415,538.78 - Step 6: Final answer
x = 1,120,429.87
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.