Finding the Fourth Proportional to 712,655.97, 983,481.08 and 406,726.26
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Solution
The fourth proportional to 712,655.97, 983,481.08 and 406,726.26 is: 561,291.28
Step by Step Solution
- Step 1: Write the proportion equation
712,655.97 : 983,481.08 = 406,726.26 : x - Step 2: Convert to fraction form
712,655.97/983,481.08 = 406,726.26/x - Step 3: Cross multiply
712,655.97x = 983,481.08 × 406,726.26 - Step 4: Simplify right side
712,655.97x = 400,007,579,415.53 - Step 5: Solve for x
x = 400,007,579,415.53/712,655.97 - Step 6: Final answer
x = 561,291.28
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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.