Finding the Fourth Proportional to 2,129,284.95, 2,938,457.70 and 1,162,455.99
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Solution
The fourth proportional to 2,129,284.95, 2,938,457.70 and 1,162,455.99 is: 1,604,213.54
Step by Step Solution
- Step 1: Write the proportion equation
2,129,284.95 : 2,938,457.70 = 1,162,455.99 : x - Step 2: Convert to fraction form
2,129,284.95/2,938,457.70 = 1,162,455.99/x - Step 3: Cross multiply
2,129,284.95x = 2,938,457.70 × 1,162,455.99 - Step 4: Simplify right side
2,129,284.95x = 3,415,827,754,726.62 - Step 5: Solve for x
x = 3,415,827,754,726.62/2,129,284.95 - Step 6: Final answer
x = 1,604,213.54
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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.