Finding the Fourth Proportional to 702,681.08, 969,698.79 and 380,391.09
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Solution
The fourth proportional to 702,681.08, 969,698.79 and 380,391.09 is: 524,939.11
Step by Step Solution
- Step 1: Write the proportion equation
702,681.08 : 969,698.79 = 380,391.09 : x - Step 2: Convert to fraction form
702,681.08/969,698.79 = 380,391.09/x - Step 3: Cross multiply
702,681.08x = 969,698.79 × 380,391.09 - Step 4: Simplify right side
702,681.08x = 368,864,776,063.41 - Step 5: Solve for x
x = 368,864,776,063.41/702,681.08 - Step 6: Final answer
x = 524,939.11
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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.