Finding the Fourth Proportional to 1,728,800.64, 2,386,057.10 and 1,031,126.13
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Solution
The fourth proportional to 1,728,800.64, 2,386,057.10 and 1,031,126.13 is: 1,423,140.28
Step by Step Solution
- Step 1: Write the proportion equation
1,728,800.64 : 2,386,057.10 = 1,031,126.13 : x - Step 2: Convert to fraction form
1,728,800.64/2,386,057.10 = 1,031,126.13/x - Step 3: Cross multiply
1,728,800.64x = 2,386,057.10 × 1,031,126.13 - Step 4: Simplify right side
1,728,800.64x = 2,460,325,818,326.39 - Step 5: Solve for x
x = 2,460,325,818,326.39/1,728,800.64 - Step 6: Final answer
x = 1,423,140.28
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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.