Finding the Fourth Proportional to 1,129,848.02, 1,558,810.91 and 639,750.56
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Solution
The fourth proportional to 1,129,848.02, 1,558,810.91 and 639,750.56 is: 882,640.98
Step by Step Solution
- Step 1: Write the proportion equation
1,129,848.02 : 1,558,810.91 = 639,750.56 : x - Step 2: Convert to fraction form
1,129,848.02/1,558,810.91 = 639,750.56/x - Step 3: Cross multiply
1,129,848.02x = 1,558,810.91 × 639,750.56 - Step 4: Simplify right side
1,129,848.02x = 997,250,158,103.01 - Step 5: Solve for x
x = 997,250,158,103.01/1,129,848.02 - Step 6: Final answer
x = 882,640.98
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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.