Finding the Fourth Proportional to 539,136.80, 808,591.80 and 272,646.80
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Solution
The fourth proportional to 539,136.80, 808,591.80 and 272,646.80 is: 408,912.85
Step by Step Solution
- Step 1: Write the proportion equation
539,136.80 : 808,591.80 = 272,646.80 : x - Step 2: Convert to fraction form
539,136.80/808,591.80 = 272,646.80/x - Step 3: Cross multiply
539,136.80x = 808,591.80 × 272,646.80 - Step 4: Simplify right side
539,136.80x = 220,459,966,776.24 - Step 5: Solve for x
x = 220,459,966,776.24/539,136.80 - Step 6: Final answer
x = 408,912.85
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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.