Finding the Fourth Proportional to 742,147.94, 1,024,260.75 and 415,585.31
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Solution
The fourth proportional to 742,147.94, 1,024,260.75 and 415,585.31 is: 573,561.82
Step by Step Solution
- Step 1: Write the proportion equation
742,147.94 : 1,024,260.75 = 415,585.31 : x - Step 2: Convert to fraction form
742,147.94/1,024,260.75 = 415,585.31/x - Step 3: Cross multiply
742,147.94x = 1,024,260.75 × 415,585.31 - Step 4: Simplify right side
742,147.94x = 425,667,721,309.58 - Step 5: Solve for x
x = 425,667,721,309.58/742,147.94 - Step 6: Final answer
x = 573,561.82
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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.