Finding the Fourth Proportional to 586,543.74, 809,427.51 and 318,271.74
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Solution
The fourth proportional to 586,543.74, 809,427.51 and 318,271.74 is: 439,213.45
Step by Step Solution
- Step 1: Write the proportion equation
586,543.74 : 809,427.51 = 318,271.74 : x - Step 2: Convert to fraction form
586,543.74/809,427.51 = 318,271.74/x - Step 3: Cross multiply
586,543.74x = 809,427.51 × 318,271.74 - Step 4: Simplify right side
586,543.74x = 257,617,902,011.57 - Step 5: Solve for x
x = 257,617,902,011.57/586,543.74 - Step 6: Final answer
x = 439,213.45
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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.