Finding the Fourth Proportional to 817,422.68, 1,128,199.41 and 541,293.83
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Solution
The fourth proportional to 817,422.68, 1,128,199.41 and 541,293.83 is: 747,088.86
Step by Step Solution
- Step 1: Write the proportion equation
817,422.68 : 1,128,199.41 = 541,293.83 : x - Step 2: Convert to fraction form
817,422.68/1,128,199.41 = 541,293.83/x - Step 3: Cross multiply
817,422.68x = 1,128,199.41 × 541,293.83 - Step 4: Simplify right side
817,422.68x = 610,687,379,642.64 - Step 5: Solve for x
x = 610,687,379,642.64/817,422.68 - Step 6: Final answer
x = 747,088.86
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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.