Finding the Fourth Proportional to 1,117,858.24, 1,542,555.76 and 634,423.36
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Solution
The fourth proportional to 1,117,858.24, 1,542,555.76 and 634,423.36 is: 875,453.95
Step by Step Solution
- Step 1: Write the proportion equation
1,117,858.24 : 1,542,555.76 = 634,423.36 : x - Step 2: Convert to fraction form
1,117,858.24/1,542,555.76 = 634,423.36/x - Step 3: Cross multiply
1,117,858.24x = 1,542,555.76 × 634,423.36 - Step 4: Simplify right side
1,117,858.24x = 978,633,408,246.55 - Step 5: Solve for x
x = 978,633,408,246.55/1,117,858.24 - Step 6: Final answer
x = 875,453.95
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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.