Finding the Fourth Proportional to 888,111.76, 1,225,612.20 and 485,729.68
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Solution
The fourth proportional to 888,111.76, 1,225,612.20 and 485,729.68 is: 670,316.79
Step by Step Solution
- Step 1: Write the proportion equation
888,111.76 : 1,225,612.20 = 485,729.68 : x - Step 2: Convert to fraction form
888,111.76/1,225,612.20 = 485,729.68/x - Step 3: Cross multiply
888,111.76x = 1,225,612.20 × 485,729.68 - Step 4: Simplify right side
888,111.76x = 595,316,221,710.10 - Step 5: Solve for x
x = 595,316,221,710.10/888,111.76 - Step 6: Final answer
x = 670,316.79
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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.