Finding the Fourth Proportional to 630,291.26, 869,807.49 and 343,812.62
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Solution
The fourth proportional to 630,291.26, 869,807.49 and 343,812.62 is: 474,464.44
Step by Step Solution
- Step 1: Write the proportion equation
630,291.26 : 869,807.49 = 343,812.62 : x - Step 2: Convert to fraction form
630,291.26/869,807.49 = 343,812.62/x - Step 3: Cross multiply
630,291.26x = 869,807.49 × 343,812.62 - Step 4: Simplify right side
630,291.26x = 299,050,792,032.52 - Step 5: Solve for x
x = 299,050,792,032.52/630,291.26 - Step 6: Final answer
x = 474,464.44
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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.