Finding the Fourth Proportional to 2,081,416.98, 2,871,303.44 and 1,393,117.68
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Solution
The fourth proportional to 2,081,416.98, 2,871,303.44 and 1,393,117.68 is: 1,921,798.28
Step by Step Solution
- Step 1: Write the proportion equation
2,081,416.98 : 2,871,303.44 = 1,393,117.68 : x - Step 2: Convert to fraction form
2,081,416.98/2,871,303.44 = 1,393,117.68/x - Step 3: Cross multiply
2,081,416.98x = 2,871,303.44 × 1,393,117.68 - Step 4: Simplify right side
2,081,416.98x = 4,000,063,579,943.23 - Step 5: Solve for x
x = 4,000,063,579,943.23/2,081,416.98 - Step 6: Final answer
x = 1,921,798.28
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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.