Finding the Fourth Proportional to 2,169,430.24, 2,992,801.20 and 1,365,057.76
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Solution
The fourth proportional to 2,169,430.24, 2,992,801.20 and 1,365,057.76 is: 1,883,142.60
Step by Step Solution
- Step 1: Write the proportion equation
2,169,430.24 : 2,992,801.20 = 1,365,057.76 : x - Step 2: Convert to fraction form
2,169,430.24/2,992,801.20 = 1,365,057.76/x - Step 3: Cross multiply
2,169,430.24x = 2,992,801.20 × 1,365,057.76 - Step 4: Simplify right side
2,169,430.24x = 4,085,346,502,197.31 - Step 5: Solve for x
x = 4,085,346,502,197.31/2,169,430.24 - Step 6: Final answer
x = 1,883,142.60
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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.