Finding the Fourth Proportional to 516,204.69, 712,476.23 and 286,840.63
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Solution
The fourth proportional to 516,204.69, 712,476.23 and 286,840.63 is: 395,903.28
Step by Step Solution
- Step 1: Write the proportion equation
516,204.69 : 712,476.23 = 286,840.63 : x - Step 2: Convert to fraction form
516,204.69/712,476.23 = 286,840.63/x - Step 3: Cross multiply
516,204.69x = 712,476.23 × 286,840.63 - Step 4: Simplify right side
516,204.69x = 204,367,130,673.23 - Step 5: Solve for x
x = 204,367,130,673.23/516,204.69 - Step 6: Final answer
x = 395,903.28
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1.5x scale
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.