Finding the Fourth Proportional to 2,639,624.55, 3,642,681.87 and 1,432,400.55
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Solution
The fourth proportional to 2,639,624.55, 3,642,681.87 and 1,432,400.55 is: 1,976,712.75
Step by Step Solution
- Step 1: Write the proportion equation
2,639,624.55 : 3,642,681.87 = 1,432,400.55 : x - Step 2: Convert to fraction form
2,639,624.55/3,642,681.87 = 1,432,400.55/x - Step 3: Cross multiply
2,639,624.55x = 3,642,681.87 × 1,432,400.55 - Step 4: Simplify right side
2,639,624.55x = 5,217,779,514,063.03 - Step 5: Solve for x
x = 5,217,779,514,063.03/2,639,624.55 - Step 6: Final answer
x = 1,976,712.75
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1.5x scale
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.