Finding the Fourth Proportional to 453,208.80, 679,813.20 and 409,663.20
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Solution
The fourth proportional to 453,208.80, 679,813.20 and 409,663.20 is: 614,494.80
Step by Step Solution
- Step 1: Write the proportion equation
453,208.80 : 679,813.20 = 409,663.20 : x - Step 2: Convert to fraction form
453,208.80/679,813.20 = 409,663.20/x - Step 3: Cross multiply
453,208.80x = 679,813.20 × 409,663.20 - Step 4: Simplify right side
453,208.80x = 278,494,450,914.24 - Step 5: Solve for x
x = 278,494,450,914.24/453,208.80 - Step 6: Final answer
x = 614,494.80
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.