Finding the Fourth Proportional to 1,247,729.18, 1,871,925.35 and 394,815.99
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Solution
The fourth proportional to 1,247,729.18, 1,871,925.35 and 394,815.99 is: 592,328.91
Step by Step Solution
- Step 1: Write the proportion equation
1,247,729.18 : 1,871,925.35 = 394,815.99 : x - Step 2: Convert to fraction form
1,247,729.18/1,871,925.35 = 394,815.99/x - Step 3: Cross multiply
1,247,729.18x = 1,871,925.35 × 394,815.99 - Step 4: Simplify right side
1,247,729.18x = 739,066,058,292.27 - Step 5: Solve for x
x = 739,066,058,292.27/1,247,729.18 - Step 6: Final answer
x = 592,328.91
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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.