Finding the Fourth Proportional to 1,553,367.51, 2,142,542.95 and 1,036,860.99
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Solution
The fourth proportional to 1,553,367.51, 2,142,542.95 and 1,036,860.99 is: 1,430,131.11
Step by Step Solution
- Step 1: Write the proportion equation
1,553,367.51 : 2,142,542.95 = 1,036,860.99 : x - Step 2: Convert to fraction form
1,553,367.51/2,142,542.95 = 1,036,860.99/x - Step 3: Cross multiply
1,553,367.51x = 2,142,542.95 × 1,036,860.99 - Step 4: Simplify right side
1,553,367.51x = 2,221,519,193,627.83 - Step 5: Solve for x
x = 2,221,519,193,627.83/1,553,367.51 - Step 6: Final answer
x = 1,430,131.11
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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.