Finding the Fourth Proportional to 461,417.41, 636,753.94 and 257,456.42
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Solution
The fourth proportional to 461,417.41, 636,753.94 and 257,456.42 is: 355,288.70
Step by Step Solution
- Step 1: Write the proportion equation
461,417.41 : 636,753.94 = 257,456.42 : x - Step 2: Convert to fraction form
461,417.41/636,753.94 = 257,456.42/x - Step 3: Cross multiply
461,417.41x = 636,753.94 × 257,456.42 - Step 4: Simplify right side
461,417.41x = 163,936,389,813.30 - Step 5: Solve for x
x = 163,936,389,813.30/461,417.41 - Step 6: Final answer
x = 355,288.70
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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.