Finding the Fourth Proportional to 563,140.99, 777,153.99 and 308,492.20
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Solution
The fourth proportional to 563,140.99, 777,153.99 and 308,492.20 is: 425,729.88
Step by Step Solution
- Step 1: Write the proportion equation
563,140.99 : 777,153.99 = 308,492.20 : x - Step 2: Convert to fraction form
563,140.99/777,153.99 = 308,492.20/x - Step 3: Cross multiply
563,140.99x = 777,153.99 × 308,492.20 - Step 4: Simplify right side
563,140.99x = 239,745,944,113.88 - Step 5: Solve for x
x = 239,745,944,113.88/563,140.99 - Step 6: Final answer
x = 425,729.88
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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.