Finding the Fourth Proportional to 3,124,312.56, 4,311,876.06 and 1,799,781.99
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Solution
The fourth proportional to 3,124,312.56, 4,311,876.06 and 1,799,781.99 is: 2,483,886.21
Step by Step Solution
- Step 1: Write the proportion equation
3,124,312.56 : 4,311,876.06 = 1,799,781.99 : x - Step 2: Convert to fraction form
3,124,312.56/4,311,876.06 = 1,799,781.99/x - Step 3: Cross multiply
3,124,312.56x = 4,311,876.06 × 1,799,781.99 - Step 4: Simplify right side
3,124,312.56x = 7,760,436,875,900.16 - Step 5: Solve for x
x = 7,760,436,875,900.16/3,124,312.56 - Step 6: Final answer
x = 2,483,886.21
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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.