Finding the Fourth Proportional to 570,858.12, 787,785.21 and 316,203.84
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Solution
The fourth proportional to 570,858.12, 787,785.21 and 316,203.84 is: 436,361.86
Step by Step Solution
- Step 1: Write the proportion equation
570,858.12 : 787,785.21 = 316,203.84 : x - Step 2: Convert to fraction form
570,858.12/787,785.21 = 316,203.84/x - Step 3: Cross multiply
570,858.12x = 787,785.21 × 316,203.84 - Step 4: Simplify right side
570,858.12x = 249,100,708,497.21 - Step 5: Solve for x
x = 249,100,708,497.21/570,858.12 - Step 6: Final answer
x = 436,361.86
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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.