Finding the Fourth Proportional to 2,126,825.97, 2,935,272.12 and 1,209,193.59
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Solution
The fourth proportional to 2,126,825.97, 2,935,272.12 and 1,209,193.59 is: 1,668,830.59
Step by Step Solution
- Step 1: Write the proportion equation
2,126,825.97 : 2,935,272.12 = 1,209,193.59 : x - Step 2: Convert to fraction form
2,126,825.97/2,935,272.12 = 1,209,193.59/x - Step 3: Cross multiply
2,126,825.97x = 2,935,272.12 × 1,209,193.59 - Step 4: Simplify right side
2,126,825.97x = 3,549,312,232,409.71 - Step 5: Solve for x
x = 3,549,312,232,409.71/2,126,825.97 - Step 6: Final answer
x = 1,668,830.59
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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.