Finding the Fourth Proportional to 498,489.80, 746,681.70 and 330,090.80
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Solution
The fourth proportional to 498,489.80, 746,681.70 and 330,090.80 is: 494,438.92
Step by Step Solution
- Step 1: Write the proportion equation
498,489.80 : 746,681.70 = 330,090.80 : x - Step 2: Convert to fraction form
498,489.80/746,681.70 = 330,090.80/x - Step 3: Cross multiply
498,489.80x = 746,681.70 × 330,090.80 - Step 4: Simplify right side
498,489.80x = 246,472,759,698.36 - Step 5: Solve for x
x = 246,472,759,698.36/498,489.80 - Step 6: Final answer
x = 494,438.92
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1.5x scale
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.