Finding the Fourth Proportional to 1,129,769.12, 1,558,396.74 and 670,581.13
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Solution
The fourth proportional to 1,129,769.12, 1,558,396.74 and 670,581.13 is: 924,995.59
Step by Step Solution
- Step 1: Write the proportion equation
1,129,769.12 : 1,558,396.74 = 670,581.13 : x - Step 2: Convert to fraction form
1,129,769.12/1,558,396.74 = 670,581.13/x - Step 3: Cross multiply
1,129,769.12x = 1,558,396.74 × 670,581.13 - Step 4: Simplify right side
1,129,769.12x = 1,045,031,446,552.19 - Step 5: Solve for x
x = 1,045,031,446,552.19/1,129,769.12 - Step 6: Final answer
x = 924,995.59
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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.