Finding the Fourth Proportional to 1,572,432.13, 2,171,317.35 and 1,491,718.87
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Solution
The fourth proportional to 1,572,432.13, 2,171,317.35 and 1,491,718.87 is: 2,059,863.19
Step by Step Solution
- Step 1: Write the proportion equation
1,572,432.13 : 2,171,317.35 = 1,491,718.87 : x - Step 2: Convert to fraction form
1,572,432.13/2,171,317.35 = 1,491,718.87/x - Step 3: Cross multiply
1,572,432.13x = 2,171,317.35 × 1,491,718.87 - Step 4: Simplify right side
1,572,432.13x = 3,238,995,063,753.40 - Step 5: Solve for x
x = 3,238,995,063,753.40/1,572,432.13 - Step 6: Final answer
x = 2,059,863.19
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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.