Finding the Fourth Proportional to 2,129,708, 2,938,650.24 and 1,258,421.44
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Solution
The fourth proportional to 2,129,708, 2,938,650.24 and 1,258,421.44 is: 1,736,416.67
Step by Step Solution
- Step 1: Write the proportion equation
2,129,708 : 2,938,650.24 = 1,258,421.44 : x - Step 2: Convert to fraction form
2,129,708/2,938,650.24 = 1,258,421.44/x - Step 3: Cross multiply
2,129,708x = 2,938,650.24 × 1,258,421.44 - Step 4: Simplify right side
2,129,708x = 3,698,060,466,677.15 - Step 5: Solve for x
x = 3,698,060,466,677.15/2,129,708 - Step 6: Final answer
x = 1,736,416.67
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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.