Finding the Fourth Proportional to 1,129,858.29, 1,559,681.50 and 762,832.63
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Solution
The fourth proportional to 1,129,858.29, 1,559,681.50 and 762,832.63 is: 1,053,031.11
Step by Step Solution
- Step 1: Write the proportion equation
1,129,858.29 : 1,559,681.50 = 762,832.63 : x - Step 2: Convert to fraction form
1,129,858.29/1,559,681.50 = 762,832.63/x - Step 3: Cross multiply
1,129,858.29x = 1,559,681.50 × 762,832.63 - Step 4: Simplify right side
1,129,858.29x = 1,189,775,934,801.06 - Step 5: Solve for x
x = 1,189,775,934,801.06/1,129,858.29 - Step 6: Final answer
x = 1,053,031.11
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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.