Finding the Fourth Proportional to 1,312,266.48, 1,799,117.12 and 1,288,351.62
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Solution
The fourth proportional to 1,312,266.48, 1,799,117.12 and 1,288,351.62 is: 1,766,329.85
Step by Step Solution
- Step 1: Write the proportion equation
1,312,266.48 : 1,799,117.12 = 1,288,351.62 : x - Step 2: Convert to fraction form
1,312,266.48/1,799,117.12 = 1,288,351.62/x - Step 3: Cross multiply
1,312,266.48x = 1,799,117.12 × 1,288,351.62 - Step 4: Simplify right side
1,312,266.48x = 2,317,895,449,679.98 - Step 5: Solve for x
x = 2,317,895,449,679.98/1,312,266.48 - Step 6: Final answer
x = 1,766,329.85
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Why These Related Problems?
These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.