Finding the Fourth Proportional to 1,430,408.10, 1,973,963.94 and 785,869.80
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Solution
The fourth proportional to 1,430,408.10, 1,973,963.94 and 785,869.80 is: 1,084,500.74
Step by Step Solution
- Step 1: Write the proportion equation
1,430,408.10 : 1,973,963.94 = 785,869.80 : x - Step 2: Convert to fraction form
1,430,408.10/1,973,963.94 = 785,869.80/x - Step 3: Cross multiply
1,430,408.10x = 1,973,963.94 × 785,869.80 - Step 4: Simplify right side
1,430,408.10x = 1,551,278,646,735.01 - Step 5: Solve for x
x = 1,551,278,646,735.01/1,430,408.10 - Step 6: Final answer
x = 1,084,500.74
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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.