Finding the Fourth Proportional to 645,762.68, 891,138.58 and 373,842.08
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Solution
The fourth proportional to 645,762.68, 891,138.58 and 373,842.08 is: 515,894.01
Step by Step Solution
- Step 1: Write the proportion equation
645,762.68 : 891,138.58 = 373,842.08 : x - Step 2: Convert to fraction form
645,762.68/891,138.58 = 373,842.08/x - Step 3: Cross multiply
645,762.68x = 891,138.58 × 373,842.08 - Step 4: Simplify right side
645,762.68x = 333,145,100,315.45 - Step 5: Solve for x
x = 333,145,100,315.45/645,762.68 - Step 6: Final answer
x = 515,894.01
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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.