Finding the Fourth Proportional to 781,328.07, 1,177,848.30 and 729,247.91
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Solution
The fourth proportional to 781,328.07, 1,177,848.30 and 729,247.91 is: 1,099,337.70
Step by Step Solution
- Step 1: Write the proportion equation
781,328.07 : 1,177,848.30 = 729,247.91 : x - Step 2: Convert to fraction form
781,328.07/1,177,848.30 = 729,247.91/x - Step 3: Cross multiply
781,328.07x = 1,177,848.30 × 729,247.91 - Step 4: Simplify right side
781,328.07x = 858,943,405,182.81 - Step 5: Solve for x
x = 858,943,405,182.81/781,328.07 - Step 6: Final answer
x = 1,099,337.70
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Why These Related Problems?
These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.