Finding the Fourth Proportional to 1,143,578.88, 1,578,139.88 and 634,281.26
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Solution
The fourth proportional to 1,143,578.88, 1,578,139.88 and 634,281.26 is: 875,308.70
Step by Step Solution
- Step 1: Write the proportion equation
1,143,578.88 : 1,578,139.88 = 634,281.26 : x - Step 2: Convert to fraction form
1,143,578.88/1,578,139.88 = 634,281.26/x - Step 3: Cross multiply
1,143,578.88x = 1,578,139.88 × 634,281.26 - Step 4: Simplify right side
1,143,578.88x = 1,000,984,550,270.81 - Step 5: Solve for x
x = 1,000,984,550,270.81/1,143,578.88 - Step 6: Final answer
x = 875,308.70
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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.