Finding the Fourth Proportional to 926,386.74, 1,278,323.37 and 518,464.26
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Solution
The fourth proportional to 926,386.74, 1,278,323.37 and 518,464.26 is: 715,430.12
Step by Step Solution
- Step 1: Write the proportion equation
926,386.74 : 1,278,323.37 = 518,464.26 : x - Step 2: Convert to fraction form
926,386.74/1,278,323.37 = 518,464.26/x - Step 3: Cross multiply
926,386.74x = 1,278,323.37 × 518,464.26 - Step 4: Simplify right side
926,386.74x = 662,764,980,067.76 - Step 5: Solve for x
x = 662,764,980,067.76/926,386.74 - Step 6: Final answer
x = 715,430.12
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1.5x scale
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.