Finding the Fourth Proportional to 1,891,129, 2,609,764.34 and 1,031,707.40
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Solution
The fourth proportional to 1,891,129, 2,609,764.34 and 1,031,707.40 is: 1,423,759.66
Step by Step Solution
- Step 1: Write the proportion equation
1,891,129 : 2,609,764.34 = 1,031,707.40 : x - Step 2: Convert to fraction form
1,891,129/2,609,764.34 = 1,031,707.40/x - Step 3: Cross multiply
1,891,129x = 2,609,764.34 × 1,031,707.40 - Step 4: Simplify right side
1,891,129x = 2,692,513,181,834.12 - Step 5: Solve for x
x = 2,692,513,181,834.12/1,891,129 - Step 6: Final answer
x = 1,423,759.66
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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.