Finding the Fourth Proportional to 742,199.36, 1,024,225.92 and 402,665.12
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Solution
The fourth proportional to 742,199.36, 1,024,225.92 and 402,665.12 is: 555,672.88
Step by Step Solution
- Step 1: Write the proportion equation
742,199.36 : 1,024,225.92 = 402,665.12 : x - Step 2: Convert to fraction form
742,199.36/1,024,225.92 = 402,665.12/x - Step 3: Cross multiply
742,199.36x = 1,024,225.92 × 402,665.12 - Step 4: Simplify right side
742,199.36x = 412,420,052,983.91 - Step 5: Solve for x
x = 412,420,052,983.91/742,199.36 - Step 6: Final answer
x = 555,672.88
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1.5x scale
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.