Finding the Fourth Proportional to 2,129,489.24, 2,938,246.02 and 1,354,840.34
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Solution
The fourth proportional to 2,129,489.24, 2,938,246.02 and 1,354,840.34 is: 1,869,393.92
Step by Step Solution
- Step 1: Write the proportion equation
2,129,489.24 : 2,938,246.02 = 1,354,840.34 : x - Step 2: Convert to fraction form
2,129,489.24/2,938,246.02 = 1,354,840.34/x - Step 3: Cross multiply
2,129,489.24x = 2,938,246.02 × 1,354,840.34 - Step 4: Simplify right side
2,129,489.24x = 3,980,854,236,740.45 - Step 5: Solve for x
x = 3,980,854,236,740.45/2,129,489.24 - Step 6: Final answer
x = 1,869,393.92
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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.