Finding the Fourth Proportional to 646,102.71, 891,621.78 and 359,616.65
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Solution
The fourth proportional to 646,102.71, 891,621.78 and 359,616.65 is: 496,270.99
Step by Step Solution
- Step 1: Write the proportion equation
646,102.71 : 891,621.78 = 359,616.65 : x - Step 2: Convert to fraction form
646,102.71/891,621.78 = 359,616.65/x - Step 3: Cross multiply
646,102.71x = 891,621.78 × 359,616.65 - Step 4: Simplify right side
646,102.71x = 320,642,031,783.97 - Step 5: Solve for x
x = 320,642,031,783.97/646,102.71 - Step 6: Final answer
x = 496,270.99
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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.