Finding the Fourth Proportional to 670,329.68, 1,005,280.88 and 220,966.79
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Solution
The fourth proportional to 670,329.68, 1,005,280.88 and 220,966.79 is: 331,379.75
Step by Step Solution
- Step 1: Write the proportion equation
670,329.68 : 1,005,280.88 = 220,966.79 : x - Step 2: Convert to fraction form
670,329.68/1,005,280.88 = 220,966.79/x - Step 3: Cross multiply
670,329.68x = 1,005,280.88 × 220,966.79 - Step 4: Simplify right side
670,329.68x = 222,133,682,970.74 - Step 5: Solve for x
x = 222,133,682,970.74/670,329.68 - Step 6: Final answer
x = 331,379.75
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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.