Finding the Fourth Proportional to 1,636,702.74, 2,258,719.88 and 911,550.42
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Solution
The fourth proportional to 1,636,702.74, 2,258,719.88 and 911,550.42 is: 1,257,978.62
Step by Step Solution
- Step 1: Write the proportion equation
1,636,702.74 : 2,258,719.88 = 911,550.42 : x - Step 2: Convert to fraction form
1,636,702.74/2,258,719.88 = 911,550.42/x - Step 3: Cross multiply
1,636,702.74x = 2,258,719.88 × 911,550.42 - Step 4: Simplify right side
1,636,702.74x = 2,058,937,050,718.60 - Step 5: Solve for x
x = 2,058,937,050,718.60/1,636,702.74 - Step 6: Final answer
x = 1,257,978.62
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.