Finding the Fourth Proportional to 3,258,348.24, 4,888,177.80 and 1,128,385.20
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Solution
The fourth proportional to 3,258,348.24, 4,888,177.80 and 1,128,385.20 is: 1,692,804.78
Step by Step Solution
- Step 1: Write the proportion equation
3,258,348.24 : 4,888,177.80 = 1,128,385.20 : x - Step 2: Convert to fraction form
3,258,348.24/4,888,177.80 = 1,128,385.20/x - Step 3: Cross multiply
3,258,348.24x = 4,888,177.80 × 1,128,385.20 - Step 4: Simplify right side
3,258,348.24x = 5,515,747,484,488.56 - Step 5: Solve for x
x = 5,515,747,484,488.56/3,258,348.24 - Step 6: Final answer
x = 1,692,804.78
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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.