Finding the Fourth Proportional to 1,288,705.98, 1,933,307.70 and 489,925.26
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Solution
The fourth proportional to 1,288,705.98, 1,933,307.70 and 489,925.26 is: 734,982.45
Step by Step Solution
- Step 1: Write the proportion equation
1,288,705.98 : 1,933,307.70 = 489,925.26 : x - Step 2: Convert to fraction form
1,288,705.98/1,933,307.70 = 489,925.26/x - Step 3: Cross multiply
1,288,705.98x = 1,933,307.70 × 489,925.26 - Step 4: Simplify right side
1,288,705.98x = 947,176,277,582.50 - Step 5: Solve for x
x = 947,176,277,582.50/1,288,705.98 - Step 6: Final answer
x = 734,982.45
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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.