Finding the Fourth Proportional to 1,898,179.20, 2,619,487.26 and 1,038,739.74
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Solution
The fourth proportional to 1,898,179.20, 2,619,487.26 and 1,038,739.74 is: 1,433,460.82
Step by Step Solution
- Step 1: Write the proportion equation
1,898,179.20 : 2,619,487.26 = 1,038,739.74 : x - Step 2: Convert to fraction form
1,898,179.20/2,619,487.26 = 1,038,739.74/x - Step 3: Cross multiply
1,898,179.20x = 2,619,487.26 × 1,038,739.74 - Step 4: Simplify right side
1,898,179.20x = 2,720,965,515,385.71 - Step 5: Solve for x
x = 2,720,965,515,385.71/1,898,179.20 - Step 6: Final answer
x = 1,433,460.82
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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.