Finding the Fourth Proportional to 728,088.20, 1,092,132.30 and 515,511.80
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Solution
The fourth proportional to 728,088.20, 1,092,132.30 and 515,511.80 is: 773,267.70
Step by Step Solution
- Step 1: Write the proportion equation
728,088.20 : 1,092,132.30 = 515,511.80 : x - Step 2: Convert to fraction form
728,088.20/1,092,132.30 = 515,511.80/x - Step 3: Cross multiply
728,088.20x = 1,092,132.30 × 515,511.80 - Step 4: Simplify right side
728,088.20x = 563,007,087,811.14 - Step 5: Solve for x
x = 563,007,087,811.14/728,088.20 - Step 6: Final answer
x = 773,267.70
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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.