Finding the Fourth Proportional to 1,542,315.79, 2,128,325.79 and 853,938.91
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Solution
The fourth proportional to 1,542,315.79, 2,128,325.79 and 853,938.91 is: 1,178,396.94
Step by Step Solution
- Step 1: Write the proportion equation
1,542,315.79 : 2,128,325.79 = 853,938.91 : x - Step 2: Convert to fraction form
1,542,315.79/2,128,325.79 = 853,938.91/x - Step 3: Cross multiply
1,542,315.79x = 2,128,325.79 × 853,938.91 - Step 4: Simplify right side
1,542,315.79x = 1,817,460,205,237.49 - Step 5: Solve for x
x = 1,817,460,205,237.49/1,542,315.79 - Step 6: Final answer
x = 1,178,396.94
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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.