Finding the Fourth Proportional to 2,129,058.30, 3,193,587.45 and 1,919,106.30
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Solution
The fourth proportional to 2,129,058.30, 3,193,587.45 and 1,919,106.30 is: 2,878,659.45
Step by Step Solution
- Step 1: Write the proportion equation
2,129,058.30 : 3,193,587.45 = 1,919,106.30 : x - Step 2: Convert to fraction form
2,129,058.30/3,193,587.45 = 1,919,106.30/x - Step 3: Cross multiply
2,129,058.30x = 3,193,587.45 × 1,919,106.30 - Step 4: Simplify right side
2,129,058.30x = 6,128,833,794,895.94 - Step 5: Solve for x
x = 6,128,833,794,895.94/2,129,058.30 - Step 6: Final answer
x = 2,878,659.45
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.