Finding the Fourth Proportional to 1,608,780.78, 2,220,135.74 and 883,645.49
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Solution
The fourth proportional to 1,608,780.78, 2,220,135.74 and 883,645.49 is: 1,219,440.80
Step by Step Solution
- Step 1: Write the proportion equation
1,608,780.78 : 2,220,135.74 = 883,645.49 : x - Step 2: Convert to fraction form
1,608,780.78/2,220,135.74 = 883,645.49/x - Step 3: Cross multiply
1,608,780.78x = 2,220,135.74 × 883,645.49 - Step 4: Simplify right side
1,608,780.78x = 1,961,812,918,319.91 - Step 5: Solve for x
x = 1,961,812,918,319.91/1,608,780.78 - Step 6: Final answer
x = 1,219,440.80
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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.