Finding the Fourth Proportional to 988,064.19, 1,363,529.48 and 535,355.19
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Solution
The fourth proportional to 988,064.19, 1,363,529.48 and 535,355.19 is: 738,790.65
Step by Step Solution
- Step 1: Write the proportion equation
988,064.19 : 1,363,529.48 = 535,355.19 : x - Step 2: Convert to fraction form
988,064.19/1,363,529.48 = 535,355.19/x - Step 3: Cross multiply
988,064.19x = 1,363,529.48 × 535,355.19 - Step 4: Simplify right side
988,064.19x = 729,972,581,159.23 - Step 5: Solve for x
x = 729,972,581,159.23/988,064.19 - Step 6: Final answer
x = 738,790.65
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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.