Finding the Fourth Proportional to 858,763.41, 1,185,038.66 and 476,790.09
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Solution
The fourth proportional to 858,763.41, 1,185,038.66 and 476,790.09 is: 657,939.87
Step by Step Solution
- Step 1: Write the proportion equation
858,763.41 : 1,185,038.66 = 476,790.09 : x - Step 2: Convert to fraction form
858,763.41/1,185,038.66 = 476,790.09/x - Step 3: Cross multiply
858,763.41x = 1,185,038.66 × 476,790.09 - Step 4: Simplify right side
858,763.41x = 565,014,686,970.93 - Step 5: Solve for x
x = 565,014,686,970.93/858,763.41 - Step 6: Final answer
x = 657,939.87
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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.