Finding the Fourth Proportional to 630,315.60, 869,829.91 and 343,829.53
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Solution
The fourth proportional to 630,315.60, 869,829.91 and 343,829.53 is: 474,481.69
Step by Step Solution
- Step 1: Write the proportion equation
630,315.60 : 869,829.91 = 343,829.53 : x - Step 2: Convert to fraction form
630,315.60/869,829.91 = 343,829.53/x - Step 3: Cross multiply
630,315.60x = 869,829.91 × 343,829.53 - Step 4: Simplify right side
630,315.60x = 299,073,209,135.24 - Step 5: Solve for x
x = 299,073,209,135.24/630,315.60 - Step 6: Final answer
x = 474,481.69
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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.