Finding the Fourth Proportional to 712,804.84, 983,703.06 and 406,963.96
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Solution
The fourth proportional to 712,804.84, 983,703.06 and 406,963.96 is: 561,628.75
Step by Step Solution
- Step 1: Write the proportion equation
712,804.84 : 983,703.06 = 406,963.96 : x - Step 2: Convert to fraction form
712,804.84/983,703.06 = 406,963.96/x - Step 3: Cross multiply
712,804.84x = 983,703.06 × 406,963.96 - Step 4: Simplify right side
712,804.84x = 400,331,692,761.72 - Step 5: Solve for x
x = 400,331,692,761.72/712,804.84 - Step 6: Final answer
x = 561,628.75
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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.