Finding the Fourth Proportional to 1,283,288.74, 1,771,128.30 and 739,321.06
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Solution
The fourth proportional to 1,283,288.74, 1,771,128.30 and 739,321.06 is: 1,020,372.43
Step by Step Solution
- Step 1: Write the proportion equation
1,283,288.74 : 1,771,128.30 = 739,321.06 : x - Step 2: Convert to fraction form
1,283,288.74/1,771,128.30 = 739,321.06/x - Step 3: Cross multiply
1,283,288.74x = 1,771,128.30 × 739,321.06 - Step 4: Simplify right side
1,283,288.74x = 1,309,432,452,152.00 - Step 5: Solve for x
x = 1,309,432,452,152.00/1,283,288.74 - Step 6: Final answer
x = 1,020,372.43
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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.