Finding the Fourth Proportional to 1,224,432.90, 1,689,645.06 and 680,549.99
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Solution
The fourth proportional to 1,224,432.90, 1,689,645.06 and 680,549.99 is: 939,118.77
Step by Step Solution
- Step 1: Write the proportion equation
1,224,432.90 : 1,689,645.06 = 680,549.99 : x - Step 2: Convert to fraction form
1,224,432.90/1,689,645.06 = 680,549.99/x - Step 3: Cross multiply
1,224,432.90x = 1,689,645.06 × 680,549.99 - Step 4: Simplify right side
1,224,432.90x = 1,149,887,920,238.32 - Step 5: Solve for x
x = 1,149,887,920,238.32/1,224,432.90 - Step 6: Final answer
x = 939,118.77
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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.