Finding the Fourth Proportional to 1,246,987.51, 1,720,861.91 and 730,617.82
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Solution
The fourth proportional to 1,246,987.51, 1,720,861.91 and 730,617.82 is: 1,008,263.82
Step by Step Solution
- Step 1: Write the proportion equation
1,246,987.51 : 1,720,861.91 = 730,617.82 : x - Step 2: Convert to fraction form
1,246,987.51/1,720,861.91 = 730,617.82/x - Step 3: Cross multiply
1,246,987.51x = 1,720,861.91 × 730,617.82 - Step 4: Simplify right side
1,246,987.51x = 1,257,292,381,669.66 - Step 5: Solve for x
x = 1,257,292,381,669.66/1,246,987.51 - Step 6: Final answer
x = 1,008,263.82
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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.