Finding the Fourth Proportional to 871,095.12, 1,306,827.36 and 310,128
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Solution
The fourth proportional to 871,095.12, 1,306,827.36 and 310,128 is: 465,257.75
Step by Step Solution
- Step 1: Write the proportion equation
871,095.12 : 1,306,827.36 = 310,128 : x - Step 2: Convert to fraction form
871,095.12/1,306,827.36 = 310,128/x - Step 3: Cross multiply
871,095.12x = 1,306,827.36 × 310,128 - Step 4: Simplify right side
871,095.12x = 405,283,755,502.08 - Step 5: Solve for x
x = 405,283,755,502.08/871,095.12 - Step 6: Final answer
x = 465,257.75
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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.