Finding the Fourth Proportional to 931,603.55, 1,397,327.41 and 257,693.17
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Solution
The fourth proportional to 931,603.55, 1,397,327.41 and 257,693.17 is: 386,518.20
Step by Step Solution
- Step 1: Write the proportion equation
931,603.55 : 1,397,327.41 = 257,693.17 : x - Step 2: Convert to fraction form
931,603.55/1,397,327.41 = 257,693.17/x - Step 3: Cross multiply
931,603.55x = 1,397,327.41 × 257,693.17 - Step 4: Simplify right side
931,603.55x = 360,081,725,673.24 - Step 5: Solve for x
x = 360,081,725,673.24/931,603.55 - Step 6: Final answer
x = 386,518.20
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.