Finding the Fourth Proportional to 2,640,072.70, 3,643,301.79 and 1,432,848.70
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Solution
The fourth proportional to 2,640,072.70, 3,643,301.79 and 1,432,848.70 is: 1,977,332.00
Step by Step Solution
- Step 1: Write the proportion equation
2,640,072.70 : 3,643,301.79 = 1,432,848.70 : x - Step 2: Convert to fraction form
2,640,072.70/3,643,301.79 = 1,432,848.70/x - Step 3: Cross multiply
2,640,072.70x = 3,643,301.79 × 1,432,848.70 - Step 4: Simplify right side
2,640,072.70x = 5,220,300,233,509.17 - Step 5: Solve for x
x = 5,220,300,233,509.17/2,640,072.70 - Step 6: Final answer
x = 1,977,332.00
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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.