Finding the Fourth Proportional to 1,438,671.94, 1,985,415.36 and 785,336.70
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Solution
The fourth proportional to 1,438,671.94, 1,985,415.36 and 785,336.70 is: 1,083,790.89
Step by Step Solution
- Step 1: Write the proportion equation
1,438,671.94 : 1,985,415.36 = 785,336.70 : x - Step 2: Convert to fraction form
1,438,671.94/1,985,415.36 = 785,336.70/x - Step 3: Cross multiply
1,438,671.94x = 1,985,415.36 × 785,336.70 - Step 4: Simplify right side
1,438,671.94x = 1,559,219,546,951.71 - Step 5: Solve for x
x = 1,559,219,546,951.71/1,438,671.94 - Step 6: Final answer
x = 1,083,790.89
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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.