Finding the Fourth Proportional to 464,221.68, 640,739.88 and 283,033.53
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Solution
The fourth proportional to 464,221.68, 640,739.88 and 283,033.53 is: 390,655.75
Step by Step Solution
- Step 1: Write the proportion equation
464,221.68 : 640,739.88 = 283,033.53 : x - Step 2: Convert to fraction form
464,221.68/640,739.88 = 283,033.53/x - Step 3: Cross multiply
464,221.68x = 640,739.88 × 283,033.53 - Step 4: Simplify right side
464,221.68x = 181,350,870,048.18 - Step 5: Solve for x
x = 181,350,870,048.18/464,221.68 - Step 6: Final answer
x = 390,655.75
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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.