Finding the Fourth Proportional to 783,005.33, 1,174,507.99 and 643,037.33
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Solution
The fourth proportional to 783,005.33, 1,174,507.99 and 643,037.33 is: 964,555.99
Step by Step Solution
- Step 1: Write the proportion equation
783,005.33 : 1,174,507.99 = 643,037.33 : x - Step 2: Convert to fraction form
783,005.33/1,174,507.99 = 643,037.33/x - Step 3: Cross multiply
783,005.33x = 1,174,507.99 × 643,037.33 - Step 4: Simplify right side
783,005.33x = 755,252,474,473.13 - Step 5: Solve for x
x = 755,252,474,473.13/783,005.33 - Step 6: Final answer
x = 964,555.99
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.