Finding the Fourth Proportional to 719,381.64, 1,078,838.84 and 239,480.52
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Solution
The fourth proportional to 719,381.64, 1,078,838.84 and 239,480.52 is: 359,143.01
Step by Step Solution
- Step 1: Write the proportion equation
719,381.64 : 1,078,838.84 = 239,480.52 : x - Step 2: Convert to fraction form
719,381.64/1,078,838.84 = 239,480.52/x - Step 3: Cross multiply
719,381.64x = 1,078,838.84 × 239,480.52 - Step 4: Simplify right side
719,381.64x = 258,360,886,399.40 - Step 5: Solve for x
x = 258,360,886,399.40/719,381.64 - Step 6: Final answer
x = 359,143.01
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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.