Finding the Fourth Proportional to 659,280.99, 909,813.23 and 357,474.99
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Solution
The fourth proportional to 659,280.99, 909,813.23 and 357,474.99 is: 493,318.45
Step by Step Solution
- Step 1: Write the proportion equation
659,280.99 : 909,813.23 = 357,474.99 : x - Step 2: Convert to fraction form
659,280.99/909,813.23 = 357,474.99/x - Step 3: Cross multiply
659,280.99x = 909,813.23 × 357,474.99 - Step 4: Simplify right side
659,280.99x = 325,235,473,508.74 - Step 5: Solve for x
x = 325,235,473,508.74/659,280.99 - Step 6: Final answer
x = 493,318.45
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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.