Finding the Fourth Proportional to 790,090.76, 1,090,317.06 and 427,506.62
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Solution
The fourth proportional to 790,090.76, 1,090,317.06 and 427,506.62 is: 589,954.70
Step by Step Solution
- Step 1: Write the proportion equation
790,090.76 : 1,090,317.06 = 427,506.62 : x - Step 2: Convert to fraction form
790,090.76/1,090,317.06 = 427,506.62/x - Step 3: Cross multiply
790,090.76x = 1,090,317.06 × 427,506.62 - Step 4: Simplify right side
790,090.76x = 466,117,761,048.94 - Step 5: Solve for x
x = 466,117,761,048.94/790,090.76 - Step 6: Final answer
x = 589,954.70
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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.