Finding the Fourth Proportional to 646,646.48, 892,742.28 and 432,149.84
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Solution
The fourth proportional to 646,646.48, 892,742.28 and 432,149.84 is: 596,614.14
Step by Step Solution
- Step 1: Write the proportion equation
646,646.48 : 892,742.28 = 432,149.84 : x - Step 2: Convert to fraction form
646,646.48/892,742.28 = 432,149.84/x - Step 3: Cross multiply
646,646.48x = 892,742.28 × 432,149.84 - Step 4: Simplify right side
646,646.48x = 385,798,433,463.24 - Step 5: Solve for x
x = 385,798,433,463.24/646,646.48 - Step 6: Final answer
x = 596,614.14
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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.