Finding the Fourth Proportional to 418,782.94, 578,023.09 and 237,600.92
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Solution
The fourth proportional to 418,782.94, 578,023.09 and 237,600.92 is: 327,947.50
Step by Step Solution
- Step 1: Write the proportion equation
418,782.94 : 578,023.09 = 237,600.92 : x - Step 2: Convert to fraction form
418,782.94/578,023.09 = 237,600.92/x - Step 3: Cross multiply
418,782.94x = 578,023.09 × 237,600.92 - Step 4: Simplify right side
418,782.94x = 137,338,817,965.24 - Step 5: Solve for x
x = 137,338,817,965.24/418,782.94 - Step 6: Final answer
x = 327,947.50
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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.