Finding the Fourth Proportional to 460,980.91, 636,107.07 and 257,012.68
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Solution
The fourth proportional to 460,980.91, 636,107.07 and 257,012.68 is: 354,651.53
Step by Step Solution
- Step 1: Write the proportion equation
460,980.91 : 636,107.07 = 257,012.68 : x - Step 2: Convert to fraction form
460,980.91/636,107.07 = 257,012.68/x - Step 3: Cross multiply
460,980.91x = 636,107.07 × 257,012.68 - Step 4: Simplify right side
460,980.91x = 163,487,582,827.65 - Step 5: Solve for x
x = 163,487,582,827.65/460,980.91 - Step 6: Final answer
x = 354,651.53
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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.