Finding the Fourth Proportional to 1,143,659.71, 1,578,238.99 and 634,348.99
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Solution
The fourth proportional to 1,143,659.71, 1,578,238.99 and 634,348.99 is: 875,395.28
Step by Step Solution
- Step 1: Write the proportion equation
1,143,659.71 : 1,578,238.99 = 634,348.99 : x - Step 2: Convert to fraction form
1,143,659.71/1,578,238.99 = 634,348.99/x - Step 3: Cross multiply
1,143,659.71x = 1,578,238.99 × 634,348.99 - Step 4: Simplify right side
1,143,659.71x = 1,001,154,309,285.12 - Step 5: Solve for x
x = 1,001,154,309,285.12/1,143,659.71 - Step 6: Final answer
x = 875,395.28
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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.