Finding the Fourth Proportional to 1,358,987.90, 1,875,415.91 and 747,144.97
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Solution
The fourth proportional to 1,358,987.90, 1,875,415.91 and 747,144.97 is: 1,031,066.99
Step by Step Solution
- Step 1: Write the proportion equation
1,358,987.90 : 1,875,415.91 = 747,144.97 : x - Step 2: Convert to fraction form
1,358,987.90/1,875,415.91 = 747,144.97/x - Step 3: Cross multiply
1,358,987.90x = 1,875,415.91 × 747,144.97 - Step 4: Simplify right side
1,358,987.90x = 1,401,207,555,390.21 - Step 5: Solve for x
x = 1,401,207,555,390.21/1,358,987.90 - Step 6: Final answer
x = 1,031,066.99
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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.