Finding the Fourth Proportional to 1,009,408.36, 1,392,631.76 and 647,032.03
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Solution
The fourth proportional to 1,009,408.36, 1,392,631.76 and 647,032.03 is: 892,678.71
Step by Step Solution
- Step 1: Write the proportion equation
1,009,408.36 : 1,392,631.76 = 647,032.03 : x - Step 2: Convert to fraction form
1,009,408.36/1,392,631.76 = 647,032.03/x - Step 3: Cross multiply
1,009,408.36x = 1,392,631.76 × 647,032.03 - Step 4: Simplify right side
1,009,408.36x = 901,077,351,480.11 - Step 5: Solve for x
x = 901,077,351,480.11/1,009,408.36 - Step 6: Final answer
x = 892,678.71
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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.