Finding the Fourth Proportional to 2,987,420.22, 4,122,621.02 and 1,698,260.68
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Solution
The fourth proportional to 2,987,420.22, 4,122,621.02 and 1,698,260.68 is: 2,343,589.00
Step by Step Solution
- Step 1: Write the proportion equation
2,987,420.22 : 4,122,621.02 = 1,698,260.68 : x - Step 2: Convert to fraction form
2,987,420.22/4,122,621.02 = 1,698,260.68/x - Step 3: Cross multiply
2,987,420.22x = 4,122,621.02 × 1,698,260.68 - Step 4: Simplify right side
2,987,420.22x = 7,001,285,176,807.49 - Step 5: Solve for x
x = 7,001,285,176,807.49/2,987,420.22 - Step 6: Final answer
x = 2,343,589.00
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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.