Finding the Fourth Proportional to 1,129,709.80, 1,558,993.86 and 613,459.08
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Solution
The fourth proportional to 1,129,709.80, 1,558,993.86 and 613,459.08 is: 846,570.46
Step by Step Solution
- Step 1: Write the proportion equation
1,129,709.80 : 1,558,993.86 = 613,459.08 : x - Step 2: Convert to fraction form
1,129,709.80/1,558,993.86 = 613,459.08/x - Step 3: Cross multiply
1,129,709.80x = 1,558,993.86 × 613,459.08 - Step 4: Simplify right side
1,129,709.80x = 956,378,944,927.48 - Step 5: Solve for x
x = 956,378,944,927.48/1,129,709.80 - Step 6: Final answer
x = 846,570.46
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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.