Finding the Fourth Proportional to 818,281.50, 1,227,465.99 and 257,359.74
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Solution
The fourth proportional to 818,281.50, 1,227,465.99 and 257,359.74 is: 386,053.37
Step by Step Solution
- Step 1: Write the proportion equation
818,281.50 : 1,227,465.99 = 257,359.74 : x - Step 2: Convert to fraction form
818,281.50/1,227,465.99 = 257,359.74/x - Step 3: Cross multiply
818,281.50x = 1,227,465.99 × 257,359.74 - Step 4: Simplify right side
818,281.50x = 315,900,328,045.24 - Step 5: Solve for x
x = 315,900,328,045.24/818,281.50 - Step 6: Final answer
x = 386,053.37
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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.