Finding the Fourth Proportional to 750,930.72, 1,036,288.08 and 411,399.12
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Solution
The fourth proportional to 750,930.72, 1,036,288.08 and 411,399.12 is: 567,732.81
Step by Step Solution
- Step 1: Write the proportion equation
750,930.72 : 1,036,288.08 = 411,399.12 : x - Step 2: Convert to fraction form
750,930.72/1,036,288.08 = 411,399.12/x - Step 3: Cross multiply
750,930.72x = 1,036,288.08 × 411,399.12 - Step 4: Simplify right side
750,930.72x = 426,328,004,178.49 - Step 5: Solve for x
x = 426,328,004,178.49/750,930.72 - Step 6: Final answer
x = 567,732.81
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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.