Finding the Fourth Proportional to 988,382.76, 1,363,915.26 and 558,637.26
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Solution
The fourth proportional to 988,382.76, 1,363,915.26 and 558,637.26 is: 770,889.49
Step by Step Solution
- Step 1: Write the proportion equation
988,382.76 : 1,363,915.26 = 558,637.26 : x - Step 2: Convert to fraction form
988,382.76/1,363,915.26 = 558,637.26/x - Step 3: Cross multiply
988,382.76x = 1,363,915.26 × 558,637.26 - Step 4: Simplify right side
988,382.76x = 761,933,878,603.91 - Step 5: Solve for x
x = 761,933,878,603.91/988,382.76 - Step 6: Final answer
x = 770,889.49
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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.