Finding the Fourth Proportional to 877,772.75, 1,316,659.67 and 212,924.75
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Solution
The fourth proportional to 877,772.75, 1,316,659.67 and 212,924.75 is: 319,387.26
Step by Step Solution
- Step 1: Write the proportion equation
877,772.75 : 1,316,659.67 = 212,924.75 : x - Step 2: Convert to fraction form
877,772.75/1,316,659.67 = 212,924.75/x - Step 3: Cross multiply
877,772.75x = 1,316,659.67 × 212,924.75 - Step 4: Simplify right side
877,772.75x = 280,349,430,005.21 - Step 5: Solve for x
x = 280,349,430,005.21/877,772.75 - Step 6: Final answer
x = 319,387.26
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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.