Finding the Fourth Proportional to 1,430,783.97, 1,974,591.77 and 819,128.67
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Solution
The fourth proportional to 1,430,783.97, 1,974,591.77 and 819,128.67 is: 1,130,460.47
Step by Step Solution
- Step 1: Write the proportion equation
1,430,783.97 : 1,974,591.77 = 819,128.67 : x - Step 2: Convert to fraction form
1,430,783.97/1,974,591.77 = 819,128.67/x - Step 3: Cross multiply
1,430,783.97x = 1,974,591.77 × 819,128.67 - Step 4: Simplify right side
1,430,783.97x = 1,617,444,726,257.40 - Step 5: Solve for x
x = 1,617,444,726,257.40/1,430,783.97 - Step 6: Final answer
x = 1,130,460.47
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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.