Finding the Fourth Proportional to 630,185.26, 869,506.08 and 358,231.66
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Solution
The fourth proportional to 630,185.26, 869,506.08 and 358,231.66 is: 494,274.66
Step by Step Solution
- Step 1: Write the proportion equation
630,185.26 : 869,506.08 = 358,231.66 : x - Step 2: Convert to fraction form
630,185.26/869,506.08 = 358,231.66/x - Step 3: Cross multiply
630,185.26x = 869,506.08 × 358,231.66 - Step 4: Simplify right side
630,185.26x = 311,484,606,418.49 - Step 5: Solve for x
x = 311,484,606,418.49/630,185.26 - Step 6: Final answer
x = 494,274.66
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1.5x scale
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.