Finding the Fourth Proportional to 970,497.75, 1,339,268.95 and 528,976.13
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Solution
The fourth proportional to 970,497.75, 1,339,268.95 and 528,976.13 is: 729,977.28
Step by Step Solution
- Step 1: Write the proportion equation
970,497.75 : 1,339,268.95 = 528,976.13 : x - Step 2: Convert to fraction form
970,497.75/1,339,268.95 = 528,976.13/x - Step 3: Cross multiply
970,497.75x = 1,339,268.95 × 528,976.13 - Step 4: Simplify right side
970,497.75x = 708,441,306,200.16 - Step 5: Solve for x
x = 708,441,306,200.16/970,497.75 - Step 6: Final answer
x = 729,977.28
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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.