Finding the Fourth Proportional to 1,559,578.40, 2,155,177.59 and 1,125,420.63
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Solution
The fourth proportional to 1,559,578.40, 2,155,177.59 and 1,125,420.63 is: 1,555,216.03
Step by Step Solution
- Step 1: Write the proportion equation
1,559,578.40 : 2,155,177.59 = 1,125,420.63 : x - Step 2: Convert to fraction form
1,559,578.40/2,155,177.59 = 1,125,420.63/x - Step 3: Cross multiply
1,559,578.40x = 2,155,177.59 × 1,125,420.63 - Step 4: Simplify right side
1,559,578.40x = 2,425,481,321,099.68 - Step 5: Solve for x
x = 2,425,481,321,099.68/1,559,578.40 - Step 6: Final answer
x = 1,555,216.03
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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.