Finding the Fourth Proportional to 2,164,009.12, 2,986,420.52 and 1,197,122.74
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Solution
The fourth proportional to 2,164,009.12, 2,986,420.52 and 1,197,122.74 is: 1,652,078.03
Step by Step Solution
- Step 1: Write the proportion equation
2,164,009.12 : 2,986,420.52 = 1,197,122.74 : x - Step 2: Convert to fraction form
2,164,009.12/2,986,420.52 = 1,197,122.74/x - Step 3: Cross multiply
2,164,009.12x = 2,986,420.52 × 1,197,122.74 - Step 4: Simplify right side
2,164,009.12x = 3,575,111,915,694.63 - Step 5: Solve for x
x = 3,575,111,915,694.63/2,164,009.12 - Step 6: Final answer
x = 1,652,078.03
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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.