Finding the Fourth Proportional to 1,554,573.18, 2,331,638.34 and 489,587.55
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Solution
The fourth proportional to 1,554,573.18, 2,331,638.34 and 489,587.55 is: 734,311.59
Step by Step Solution
- Step 1: Write the proportion equation
1,554,573.18 : 2,331,638.34 = 489,587.55 : x - Step 2: Convert to fraction form
1,554,573.18/2,331,638.34 = 489,587.55/x - Step 3: Cross multiply
1,554,573.18x = 2,331,638.34 × 489,587.55 - Step 4: Simplify right side
1,554,573.18x = 1,141,541,102,366.67 - Step 5: Solve for x
x = 1,141,541,102,366.67/1,554,573.18 - Step 6: Final answer
x = 734,311.59
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1.5x scale
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.