Finding the Fourth Proportional to 1,283,156.80, 1,771,199.02 and 739,509.62
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Solution
The fourth proportional to 1,283,156.80, 1,771,199.02 and 739,509.62 is: 1,020,778.38
Step by Step Solution
- Step 1: Write the proportion equation
1,283,156.80 : 1,771,199.02 = 739,509.62 : x - Step 2: Convert to fraction form
1,283,156.80/1,771,199.02 = 739,509.62/x - Step 3: Cross multiply
1,283,156.80x = 1,771,199.02 × 739,509.62 - Step 4: Simplify right side
1,283,156.80x = 1,309,818,714,224.57 - Step 5: Solve for x
x = 1,309,818,714,224.57/1,283,156.80 - Step 6: Final answer
x = 1,020,778.38
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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.