Finding the Fourth Proportional to 992,669.42, 1,488,863.55 and 318,661.98
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Solution
The fourth proportional to 992,669.42, 1,488,863.55 and 318,661.98 is: 477,947.84
Step by Step Solution
- Step 1: Write the proportion equation
992,669.42 : 1,488,863.55 = 318,661.98 : x - Step 2: Convert to fraction form
992,669.42/1,488,863.55 = 318,661.98/x - Step 3: Cross multiply
992,669.42x = 1,488,863.55 × 318,661.98 - Step 4: Simplify right side
992,669.42x = 474,444,206,792.83 - Step 5: Solve for x
x = 474,444,206,792.83/992,669.42 - Step 6: Final answer
x = 477,947.84
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.