Finding the Fourth Proportional to 528,175.48, 728,880.04 and 286,457.08
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Solution
The fourth proportional to 528,175.48, 728,880.04 and 286,457.08 is: 395,309.62
Step by Step Solution
- Step 1: Write the proportion equation
528,175.48 : 728,880.04 = 286,457.08 : x - Step 2: Convert to fraction form
528,175.48/728,880.04 = 286,457.08/x - Step 3: Cross multiply
528,175.48x = 728,880.04 × 286,457.08 - Step 4: Simplify right side
528,175.48x = 208,792,847,928.68 - Step 5: Solve for x
x = 208,792,847,928.68/528,175.48 - Step 6: Final answer
x = 395,309.62
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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.