Finding the Fourth Proportional to 521,257.69, 719,330.75 and 294,903.19
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Solution
The fourth proportional to 521,257.69, 719,330.75 and 294,903.19 is: 406,963.65
Step by Step Solution
- Step 1: Write the proportion equation
521,257.69 : 719,330.75 = 294,903.19 : x - Step 2: Convert to fraction form
521,257.69/719,330.75 = 294,903.19/x - Step 3: Cross multiply
521,257.69x = 719,330.75 × 294,903.19 - Step 4: Simplify right side
521,257.69x = 212,132,929,567.25 - Step 5: Solve for x
x = 212,132,929,567.25/521,257.69 - Step 6: Final answer
x = 406,963.65
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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.