Finding the Fourth Proportional to 743,493.76, 1,026,030.72 and 403,967.68
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Solution
The fourth proportional to 743,493.76, 1,026,030.72 and 403,967.68 is: 557,480.47
Step by Step Solution
- Step 1: Write the proportion equation
743,493.76 : 1,026,030.72 = 403,967.68 : x - Step 2: Convert to fraction form
743,493.76/1,026,030.72 = 403,967.68/x - Step 3: Cross multiply
743,493.76x = 1,026,030.72 × 403,967.68 - Step 4: Simplify right side
743,493.76x = 414,483,249,567.13 - Step 5: Solve for x
x = 414,483,249,567.13/743,493.76 - Step 6: Final answer
x = 557,480.47
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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.